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Celebrating over 50 years of Trusted Marine Service
Over 50 years of Trusted Marine Service

Complete Transmissions

Drop-In Replacement Marine Transmission Assemblies

Complete marine transmission units ready for installation in inboard and sterndrive applications. Each transmission assembly is fully assembled, tested, and backed by manufacturer warranty for reliable performance in commercial and recreational marine environments.

Why Choose Complete Transmission Assemblies

  • Ready to Install - Pre-assembled units save installation time and reduce labor costs
  • OEM Quality - Genuine manufacturer assemblies meeting original equipment specifications
  • Factory Tested - Each unit undergoes quality control testing before shipment
  • Warranty Backed - Full manufacturer warranty coverage for peace of mind
  • Technical Support - Installation guidance and technical assistance available

Applications

Our complete transmission inventory covers a wide range of marine applications including pleasure craft, commercial vessels, and high-performance applications. Available in various gear ratios, input configurations, and power ratings to match your specific engine and propulsion requirements.

All transmissions ship with installation hardware, gaskets, and technical documentation. Transmission fluid and specialty tools available separately.

Filters

Velvet Drive Neutral Safety Switch 1000-640-004 | Borg Warner 71C / 72C Transmission

Original price $49.99 - Original price $49.99
Original price
$49.99
$49.99 - $49.99
Current price $49.99
7 in stock

Velvet Drive Neutral Safety Switch 1000-640-004 Part Number: 1000-640-004  |  Brand: Borg Warner / Velvet Drive The Velvet Drive 1000-640-004 is a ...

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Original price $49.99 - Original price $49.99
Original price
$49.99
$49.99 - $49.99
Current price $49.99

Mercury MerCruiser Quicksilver 18903T Rear Transmission Mounting Bracket — Hurth Inboard Applications

Original price $153.35 - Original price $153.35
Original price
$153.35
$153.35 - $153.35
Current price $153.35
Only 2 left!

Mercury MerCruiser Quicksilver 18903T — Rear Transmission Mounting Bracket, Hurth Inboard Part Number 18903T Current Replacement ...

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Original price $153.35 - Original price $153.35
Original price
$153.35
$153.35 - $153.35
Current price $153.35

Volvo Penta Transmission Shift Solenoid Valve 22774568

Original price $1,070.00 - Original price $1,070.00
Original price
$1,070.00
$1,070.00 - $1,070.00
Current price $1,070.00
Out of stock

Volvo Penta Transmission Shift Solenoid Valve — OEM Part 22774568 The Volvo Penta Transmission Shift Solenoid Valve 22774568 is a genuine OEM 12/2...

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Original price $1,070.00 - Original price $1,070.00
Original price
$1,070.00
$1,070.00 - $1,070.00
Current price $1,070.00
Sold out

Volvo Penta Transmission Cable Connection 22769770

Original price $95.00 - Original price $95.00
Original price
$95.00
$95.00 - $95.00
Current price $95.00
Only 1 left!

Volvo Penta Transmission Cable Connection — OEM Part 22769770 The Volvo Penta Transmission Cable Connection 22769770 is a genuine OEM electrical c...

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Original price $95.00 - Original price $95.00
Original price
$95.00
$95.00 - $95.00
Current price $95.00

Volvo Penta IPS Aquamatic Transmission Oil 75W-90 208L 22479660

Original price $7,072.00 - Original price $7,072.00
Original price
$7,072.00
$7,072.00 - $7,072.00
Current price $7,072.00

Volvo Penta IPS Aquamatic Transmission Oil 75W-90 — 208L Drum | OEM 22479660 The Volvo Penta IPS Aquamatic Synthetic Transmission Oil 75W-90 (2247...

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Original price $7,072.00 - Original price $7,072.00
Original price
$7,072.00
$7,072.00 - $7,072.00
Current price $7,072.00

Volvo Penta IPS Transmission Oil 75W-90 1L 22479650 - Special Order

Original price $57.00 - Original price $57.00
Original price
$57.00
$57.00 - $57.00
Current price $57.00

Volvo Penta 22479650 is genuine OEM Synthetic Transmission Oil 75W-90 supplied in a 1 litre bottle. It is a fully synthetic marine gear oil develop...

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Original price $57.00 - Original price $57.00
Original price
$57.00
$57.00 - $57.00
Current price $57.00

Volvo Penta IPS Transmission Oil 75W-90 22479647 - Special Order

Original price $712.00 - Original price $712.00
Original price
$712.00
$712.00 - $712.00
Current price $712.00

Volvo Penta 22479647 is genuine OEM Synthetic Transmission Oil 75W-90 for Volvo Penta marine drive and transmission applications. It is used where ...

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Original price $712.00 - Original price $712.00
Original price
$712.00
$712.00 - $712.00
Current price $712.00

ZF Marine Transmission ZF85A 1.962:1 Ratio 12V Electric 3323001003

Original price $10,704.85 - Original price $10,704.85
Original price
$10,704.85
$10,704.85 - $10,704.85
Current price $10,704.85

ZF Marine Transmission ZF85A - Professional Marine Propulsion Component OEM marine transmission designed for medium to heavy-duty marine applicatio...

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Original price $10,704.85 - Original price $10,704.85
Original price
$10,704.85
$10,704.85 - $10,704.85
Current price $10,704.85

ZF Hurth 800V Dipstick Screw-In - 3313201002

Original price $81.00 - Original price $81.00
Original price
$81.00
$81.00 - $81.00
Current price $81.00
Only 1 left!

ZF Hurth 800V Screw-In Dipstick for Marine Transmissions This precision-manufactured screw-in dipstick is designed for ZF Hurth 800V marine transm...

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Original price $81.00 - Original price $81.00
Original price
$81.00
$81.00 - $81.00
Current price $81.00

ZF Hurth HSW Series Control Block Gasket - Marine Transmission

Original price $24.85 - Original price $24.85
Original price
$24.85
$24.85 - $24.85
Current price $24.85
8 in stock

Control Block Gasket for ZF Hurth HSW Series Marine Transmissions This precision-cut control block gasket is engineered for ZF Hurth HSW series ma...

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Original price $24.85 - Original price $24.85
Original price
$24.85
$24.85 - $24.85
Current price $24.85

ZF Hurth Oil Seal 55x72x10mm Viton - Marine Transmission Seal

Original price $87.33 - Original price $87.33
Original price
$87.33
$87.33 - $87.33
Current price $87.33
Only 1 left!

Premium Viton Oil Seal for ZF Hurth Marine Transmissions - 55x72x10mm This high-performance Viton oil seal is engineered for ZF Hurth marine trans...

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Original price $87.33 - Original price $87.33
Original price
$87.33
$87.33 - $87.33
Current price $87.33

ZF Hurth Level Gauge Dipstick - Marine Transmission Fluid Check

Original price $56.84 - Original price $56.84
Original price
$56.84
$56.84 - $56.84
Current price $56.84
Only 2 left!

ZF Hurth Level Gauge Dipstick for Marine Transmissions This precision-calibrated level gauge dipstick is designed for ZF Hurth marine transmission...

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Original price $56.84 - Original price $56.84
Original price
$56.84
$56.84 - $56.84
Current price $56.84

ZF Marine Transmission Filter Kit 3312199031

Original price $138.51 - Original price $138.51
Original price
$138.51
$138.51 - $138.51
Current price $138.51
Only 4 left!

The ZF Marine 3312199031 Transmission Filter Kit is an original-equipment transmission oil filter kit used on select ZF Hurth marine gearboxes. Thi...

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Original price $138.51 - Original price $138.51
Original price
$138.51
$138.51 - $138.51
Current price $138.51

ZF Transmission Cooler Kit 3312107003

Original price $613.35 - Original price $613.35
Original price
$613.35
$613.35 - $613.35
Current price $613.35
Only 1 left!

ZF 3312107003 is a marine transmission gear oil cooler kit used to help control transmission oil temperature on supported ZF marine gearboxes. It i...

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Original price $613.35 - Original price $613.35
Original price
$613.35
$613.35 - $613.35
Current price $613.35

ZF Marine Transmission Output Flange 4" - Propeller Shaft Connection

Original price $536.65 - Original price $536.65
Original price
$536.65
$536.65 - $536.65
Current price $536.65
Out of stock

4-Inch Output Flange for ZF Marine Transmissions This precision-machined 4-inch output flange is engineered for ZF marine transmissions, providing...

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Original price $536.65 - Original price $536.65
Original price
$536.65
$536.65 - $536.65
Current price $536.65
Sold out

ZF Hurth 30/50 Clutch Kit with Seal Kit - Complete Rebuild Package

Original price $1,254.46 - Original price $1,254.46
Original price
$1,254.46
$1,254.46 - $1,254.46
Current price $1,254.46
Out of stock

Complete Clutch and Seal Kit for ZF Hurth 30/50 Marine Transmissions This comprehensive rebuild kit includes all clutch components and seals neede...

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Original price $1,254.46 - Original price $1,254.46
Original price
$1,254.46
$1,254.46 - $1,254.46
Current price $1,254.46
Sold out

ZF Hurth HBW50/USD Input Shaft - Marine Transmission Component

Original price $476.68 - Original price $476.68
Original price
$476.68
$476.68 - $476.68
Current price $476.68
Out of stock

Input Shaft for ZF Hurth HBW50/USD Marine Transmissions This precision-machined input shaft is engineered for ZF Hurth HBW50 and USD series marine ...

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Original price $476.68 - Original price $476.68
Original price
$476.68
$476.68 - $476.68
Current price $476.68
Sold out

ZF Marine Transmission Shift Kit Assembly 24V - Electronic Shift Control

Original price $3,397.84 - Original price $3,397.84
Original price
$3,397.84
$3,397.84 - $3,397.84
Current price $3,397.84
Out of stock

Complete 24V Shift Kit Assembly for ZF Marine Transmissions This comprehensive shift kit assembly provides complete electronic shift control for Z...

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Original price $3,397.84 - Original price $3,397.84
Original price
$3,397.84
$3,397.84 - $3,397.84
Current price $3,397.84
Sold out

ZF 285A-665 Oil Filter - Spin-On Standard 5.5" Marine Transmission

Original price $178.96 - Original price $178.96
Original price
$178.96
$178.96 - $178.96
Current price $178.96
Only 3 left!

Spin-On Oil Filter for ZF 285A through ZF665 Marine Transmissions This premium spin-on oil filter is engineered for ZF marine transmissions from t...

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Original price $178.96 - Original price $178.96
Original price
$178.96
$178.96 - $178.96
Current price $178.96

ZF IRM 301PL-2-310PL Oil Filter - Spin-On Short 3.5" Marine Transmission

Original price $168.37 - Original price $168.37
Original price
$168.37
$168.37 - $168.37
Current price $168.37
Out of stock

Spin-On Oil Filter for ZF IRM 301PL-2 and 310PL Marine Transmissions This premium spin-on oil filter is engineered for ZF IRM 301PL-2 and 310PL ma...

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Original price $168.37 - Original price $168.37
Original price
$168.37
$168.37 - $168.37
Current price $168.37
Sold out

ZF Marine Transmission Friction Clutch Plate Kit - Rebuild Component

Original price $1,316.70 - Original price $1,316.70
Original price
$1,316.70
$1,316.70 - $1,316.70
Current price $1,316.70
Out of stock

Friction Clutch Plate Kit for ZF Marine Transmissions This premium friction clutch plate kit includes all friction plates needed to restore proper...

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Original price $1,316.70 - Original price $1,316.70
Original price
$1,316.70
$1,316.70 - $1,316.70
Current price $1,316.70
Sold out

ZF IRM Shim Kit - Marine Transmission Bearing Adjustment Kit

Original price $424.99 - Original price $424.99
Original price
$424.99
$424.99 - $424.99
Current price $424.99
Out of stock

Precision Shim Kit for ZF IRM Marine Transmissions This comprehensive shim kit is engineered for ZF IRM marine transmissions, providing the precise...

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Original price $424.99 - Original price $424.99
Original price
$424.99
$424.99 - $424.99
Current price $424.99
Sold out

ZF Marine Transmission Seal Kit - Complete Gasket and Seal Package

Original price $321.91 - Original price $321.91
Original price
$321.91
$321.91 - $321.91
Current price $321.91
Out of stock

Complete Seal Kit for ZF Marine Transmissions This comprehensive seal kit includes all gaskets, O-rings, and seals needed to restore leak-free oper...

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Original price $321.91 - Original price $321.91
Original price
$321.91
$321.91 - $321.91
Current price $321.91
Sold out

ZF Hurth 30/50 HBW-USD Output Shaft - Marine Transmission Component

Original price $510.14 - Original price $510.14
Original price
$510.14
$510.14 - $510.14
Current price $510.14
Out of stock

Output Shaft for ZF Hurth 30/50 HBW-USD Marine Transmissions This precision-machined output shaft is engineered for ZF Hurth 30, 50, HBW, and USD s...

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Original price $510.14 - Original price $510.14
Original price
$510.14
$510.14 - $510.14
Current price $510.14
Sold out

ZF Marine Transmission Sealing Ring - O-Ring Seal Component

Original price $12.58 - Original price $12.58
Original price
$12.58
$12.58 - $12.58
Current price $12.58
Out of stock

Sealing Ring for ZF Marine Transmissions This precision-manufactured sealing ring is designed for ZF marine transmissions, providing reliable seal...

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Original price $12.58 - Original price $12.58
Original price
$12.58
$12.58 - $12.58
Current price $12.58
Sold out

TMI Marine Transmission Output Oil Seal - Shaft Seal Component

Original price $77.63 - Original price $77.63
Original price
$77.63
$77.63 - $77.63
Current price $77.63
Only 1 left!

Output Oil Seal for TMI Marine Transmissions This precision-manufactured output oil seal is designed for TMI marine transmissions, providing relia...

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Original price $77.63 - Original price $77.63
Original price
$77.63
$77.63 - $77.63
Current price $77.63

ZF Marine Transmission Input Seal - Input Shaft Oil Seal Component

Original price $68.62 - Original price $68.62
Original price
$68.62
$68.62 - $68.62
Current price $68.62
Out of stock

Input Seal for ZF Marine Transmissions This precision-manufactured input seal is designed for ZF marine transmissions, providing reliable sealing ...

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Original price $68.62 - Original price $68.62
Original price
$68.62
$68.62 - $68.62
Current price $68.62
Sold out

ZF Marine Transmission Output Seal - Output Shaft Oil Seal Component

Original price $48.87 - Original price $48.87
Original price
$48.87
$48.87 - $48.87
Current price $48.87
Only 1 left!

Output Seal for ZF Marine Transmissions This precision-manufactured output seal is designed for ZF marine transmissions, providing reliable sealin...

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Original price $48.87 - Original price $48.87
Original price
$48.87
$48.87 - $48.87
Current price $48.87

TMI HSW Control Valve Oil Seal - Marine Transmission Seal Component

Original price $33.01 - Original price $33.01
Original price
$33.01
$33.01 - $33.01
Current price $33.01
Only 2 left!

Control Valve Oil Seal for TMI HSW Marine Transmissions This precision-manufactured oil seal is designed for TMI HSW marine transmission control va...

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Original price $33.01 - Original price $33.01
Original price
$33.01
$33.01 - $33.01
Current price $33.01

ZF Marine Transmission O-Ring - Seal Component

Original price $8.85 - Original price $8.85
Original price
$8.85
$8.85 - $8.85
Current price $8.85
Only 3 left!

O-Ring for ZF Marine Transmissions This precision-manufactured O-ring is designed for ZF marine transmissions, providing reliable sealing at variou...

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Original price $8.85 - Original price $8.85
Original price
$8.85
$8.85 - $8.85
Current price $8.85

ZF Marine Transmission O-Ring 16x2mm - Seal Component

Original price $5.50 - Original price $5.50
Original price
$5.50
$5.50 - $5.50
Current price $5.50
Only 2 left!

16x2mm O-Ring for ZF Marine Transmissions This precision-manufactured 16x2mm O-ring is designed for ZF marine transmissions, providing reliable sea...

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Original price $5.50 - Original price $5.50
Original price
$5.50
$5.50 - $5.50
Current price $5.50

ZF Marine Transmission O-Ring - Seal Component

Original price $19.68 - Original price $19.68
Original price
$19.68
$19.68 - $19.68
Current price $19.68
Out of stock

O-Ring for ZF Marine Transmissions This precision-manufactured O-ring is designed for ZF marine transmissions, providing reliable sealing at vario...

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Original price $19.68 - Original price $19.68
Original price
$19.68
$19.68 - $19.68
Current price $19.68
Sold out

CENTA CFR 114/134/136/178 HR Roller Damper - Flexible Coupling Component

Original price $105.82 - Original price $105.82
Original price
$105.82
$105.82 - $105.82
Current price $105.82
Out of stock

High-Resilience Roller Damper for CENTA CFR Flexible Couplings This high-resilience (HR) roller damper is designed for CENTA CFR 114, 134, 136, and...

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Original price $105.82 - Original price $105.82
Original price
$105.82
$105.82 - $105.82
Current price $105.82
Sold out

Volvo Penta MS4B Transmission Sealing Ring - 853757

Original price $105.00 - Original price $105.00
Original price
$105.00
$105.00 - $105.00
Current price $105.00
Only 1 left!

The Volvo Penta 853757 Transmission Sealing Ring is a genuine OEM internal sealing component used in compatible Volvo Penta transmission and revers...

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Original price $105.00 - Original price $105.00
Original price
$105.00
$105.00 - $105.00
Current price $105.00

Volvo Penta Transmission Oil 1141681 — OEM Synthetic GL-5, 5 Gallon

Original price $751.00 - Original price $751.00
Original price
$751.00
$751.00 - $751.00
Current price $751.00
7 in stock

Volvo Penta Transmission Oil — Part No. 1141681 This is the genuine OEM Volvo Penta synthetic GL-5 transmission oil in the 5-gallon (18.9 L) pail s...

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Original price $751.00 - Original price $751.00
Original price
$751.00
$751.00 - $751.00
Current price $751.00

Volvo Penta Transmission Oil 1141680 — OEM Marine Gear Lubricant

Original price $151.00 - Original price $151.00
Original price $151.00
$151.00
$151.00 - $151.00
Current price $151.00
15 in stock

Volvo Penta Transmission Oil — Part No. 1141680 This is the genuine OEM Volvo Penta transmission oil specified for select Volvo Penta marine drives...

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Original price $151.00 - Original price $151.00
Original price $151.00
$151.00
$151.00 - $151.00
Current price $151.00

Volvo Penta Transmission Oil 11 Synthetic 75W-90 GL-5 1141679 | 1 Qt

Original price $40.60 - Original price $40.60
Original price $40.60
$40.60
$40.60 - $40.60
Current price $40.60
43 in stock

Volvo Penta Transmission Oil 11 Synthetic — Part #1141679 Genuine Volvo Penta fully synthetic SAE 75W-90 API GL-5 gear oil — the factory-specified ...

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Original price $40.60 - Original price $40.60
Original price $40.60
$40.60
$40.60 - $40.60
Current price $40.60

Volvo Penta Transmission Oil 80W-90 GL-5 1141676 | 1 Qt Gear Lube

Original price $27.80 - Original price $27.80
Original price
$27.80
$27.80 - $27.80
Current price $27.80
9 in stock

Volvo Penta Transmission Oil 80W-90 GL-5 — Part #1141676 Genuine Volvo Penta SAE 80W-90 API GL-5 petroleum gear oil for compatible older sterndrive...

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Original price $27.80 - Original price $27.80
Original price
$27.80
$27.80 - $27.80
Current price $27.80

ZF 63IV V-Drive Marine Transmission 2.0:1 – Part 3312003014

Original price $5,853.85 - Original price $5,853.85
Original price
$5,853.85
$5,853.85 - $5,853.85
Current price $5,853.85
Out of stock

ZF 63IV V-Drive Marine Transmission – 2.0:1 RatioThe ZF 63IV is a hydraulic V-drive marine transmission designed for inboard ski boats, wake boats,...

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Original price $5,853.85 - Original price $5,853.85
Original price
$5,853.85
$5,853.85 - $5,853.85
Current price $5,853.85
Sold out

Pennzoil Dex/Merc Automatic Transmission Fluid — 1 Qt / 946 mL, DEXRON III/MERCON | 550050745

Original price $11.82 - Original price $11.82
Original price
$11.82
$11.82 - $11.82
Current price $11.82
9 in stock

The Pennzoil Automatic Transmission Fluid 550050745 is a high-quality mineral-oil ATF formulated for automatic transmissions, power-shift transmiss...

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Original price $11.82 - Original price $11.82
Original price
$11.82
$11.82 - $11.82
Current price $11.82

ATF TRANSMISSION OIL

Original price $29.99 - Original price $29.99
Original price
$29.99
$29.99 - $29.99
Current price $29.99
7 in stock

ATF TRANSMISSION OIL

Original price $29.99 - Original price $29.99
Original price
$29.99
$29.99 - $29.99
Current price $29.99

Synthetic 75W90 Gear Oil – Marine Lower Unit & Transmission Oil

Original price $24.92 - Original price $24.92
Original price
$24.92
$24.92 - $24.92
Current price $24.92
Only 1 left!

Synthetic 75W90 Marine Gear OilA full-synthetic, GL-5 rated gear oil engineered for the unique demands of marine drivetrains. Whether you're servic...

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Original price $24.92 - Original price $24.92
Original price
$24.92
$24.92 - $24.92
Current price $24.92

ZF Hurth 32 Needle Bearing - Marine Transmission Component

Original price $65.53 - Original price $65.53
Original price
$65.53
$65.53 - $65.53
Current price $65.53
Out of stock

Premium Needle Bearing for ZF Hurth 32 Marine Transmissions This precision-engineered needle bearing is designed specifically for ZF Hurth 32 mari...

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Original price $65.53 - Original price $65.53
Original price
$65.53
$65.53 - $65.53
Current price $65.53
Sold out

ZF68IV Marine Transmission 1.98:1 Ratio - Mechanical Shift

Original price $5,834.36 - Original price $5,834.36
Original price
$5,834.36
$5,834.36 - $5,834.36
Current price $5,834.36
Out of stock

ZF68IV Marine Transmission - 1.98:1 Gear Ratio with Mechanical Shift The ZF68IV is a premium marine transmission engineered for reliable power tra...

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Original price $5,834.36 - Original price $5,834.36
Original price
$5,834.36
$5,834.36 - $5,834.36
Current price $5,834.36
Sold out

ZF63C Marine Transmission 1.0:1 Ratio - Mechanical Shift

Original price $4,435.42 - Original price $4,435.42
Original price
$4,435.42
$4,435.42 - $4,435.42
Current price $4,435.42
Out of stock

ZF63C Marine Transmission - 1.0:1 Direct Drive with Mechanical Shift The ZF63C is a premium marine transmission engineered for reliable power trans...

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Original price $4,435.42 - Original price $4,435.42
Original price
$4,435.42
$4,435.42 - $4,435.42
Current price $4,435.42
Sold out

ZF220 Marine Transmission 1.23:1 Ratio - Electric Shift Special Order

Original price $12,051.69 - Original price $12,051.69
Original price
$12,051.69
$12,051.69 - $12,051.69
Current price $12,051.69
Out of stock

ZF220 Marine Transmission - 1.23:1 Gear Ratio with Electric Shift The ZF220 is a premium heavy-duty marine transmission engineered for high-power ...

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Original price $12,051.69 - Original price $12,051.69
Original price
$12,051.69
$12,051.69 - $12,051.69
Current price $12,051.69
Sold out