Volvo Penta Serpentine Drive Belt 3889124 | 4.3L 5.0L 5.7L GXi OSi G-Gen OEM

Volvo Penta Serpentine Drive Belt – 3889124

Part Information

• Part Number: 3889124
• Brand: Volvo Penta
• Official Product Type: Serpentine / Accessory Drive Belt
• OEM Status: Genuine Volvo Penta
• Supersedes: 3817287
• System: Accessory Drive – Serpentine Belt
• Weight: Approx. 0.25 kg (0.55 lb)

What This Part Does

The 3889124 is the OEM serpentine accessory drive belt for selected Volvo Penta G and H-generation 4.3L, 5.0L, and 5.7L gasoline marine engines. It transfers power from the crankshaft through the multi-pulley accessory drive system to the alternator and other belt-driven accessories. Volvo Penta’s maintenance catalog identifies 3889124 directly as the drive belt for the documented G/GF and H/HF engine families listed below.

Do not match by engine displacement alone — Volvo Penta used different belt lengths and pulley arrangements within the 4.3L, 5.0L, and 5.7L gasoline families. The strongest fitment confirmation is a parts or maintenance diagram showing 3889124 or superseded number 3817287.

Compatible Applications

4.3L

• Volvo Penta 4.3GL-G / GL-GF
• Volvo Penta 4.3GXi-G / GXi-GF
• Volvo Penta 4.3OSi-G / OSi-GF

5.0L

• Volvo Penta 5.0GL-H / GL-HF
• Volvo Penta 5.0GXi-G / GXi-GF
• Volvo Penta 5.0OSi-G / OSi-GF

5.7L (selected applications)

• Selected Volvo Penta 5.7Gi variants
• Selected Volvo Penta 5.7GXi variants
• Selected Volvo Penta 5.7OSi variants
• Selected Volvo Penta 5.7OSXi variants

Confirm the exact engine model and serial number before ordering. The safest match is a maintenance or parts diagram specifying 3889124 or the earlier 3817287 at the drive-belt position for your engine.

Serial Number Fitment Notice

Volvo Penta used several different accessory-drive belt lengths and pulley configurations within the same 4.3L, 5.0L, and 5.7L families. Match by engine model suffix (G, GF, H, HF) and serial number rather than displacement alone to ensure the correct belt for your specific engine configuration.

When to Replace

• Rib surfaces are cracked or show visible deterioration
• Belt edges are frayed or sections of rib material are missing
• Belt is glazed, hardened, or contaminated with oil or coolant
• Squealing or slipping develops during engine operation
• Belt repeatedly tracks incorrectly or walks off a pulley
• Service history is unknown

Service Interval

Inspect the serpentine belt annually and replace at the first sign of cracking, glazing, fraying, or any condition listed above. On engines in salt-water or high-hour applications, inspect more frequently. Always inspect the full accessory drive — tensioner, idler pulleys, and alternator pulley — when replacing the belt. A worn tensioner or damaged pulley bearing will shorten the life of a new belt.

Installation Notes

Before installing the new belt, inspect the following for wear, roughness, or misalignment:

• Automatic belt tensioner (see Volvo Penta Serpentine Belt Tensioner 3860079 if applicable to your engine)
• Idler pulleys
• Alternator pulley and bearing
• Circulation pump pulley (where applicable)
• Pulley alignment and groove condition

Route the belt according to the Volvo Penta accessory-drive diagram for your specific engine model. Confirm every rib is fully seated in the pulley grooves before slowly releasing the tensioner. After installation, run the engine briefly and verify smooth tracking with no abnormal vibration or belt noise.

Technical FAQ

Q: Can I use 3889124 on any Volvo Penta 4.3L or 5.0L engine?
A: Not necessarily. This belt is confirmed for G, GF, H, and HF-generation engines in the documented families. Other 4.3L and 5.0L variants may use a different belt. Confirm by engine model suffix and serial number. See also Volvo Penta Serpentine Drive Belt 3860086 and Volvo Penta Serpentine Drive Belt 3586326 for other configurations.

Q: What number does 3889124 replace?
A: It supersedes earlier Volvo Penta belt number 3817287 in the same application.

Q: Should I replace the tensioner when I replace the belt?
A: If the tensioner pulley bearing is rough, noisy, or the tensioner arm does not move smoothly, replace it at the same time. A failing tensioner is a common cause of belt noise, slippage, and premature belt wear.

Related Parts

• Volvo Penta Serpentine Belt Tensioner 3860079 – 4.3L 5.0L 5.7L 7.4L 8.2L
• Volvo Penta Serpentine Drive Belt 3860086 – 4.3L 5.0L 5.7L GXi OSi Gi
• Volvo Penta Serpentine Drive Belt 3586326 – 4.3 / 5.0 / 5.7 GXi OSi Gasoline

Alternate Part Numbers

• Volvo Penta 3889124
• 3817287 (superseded)
• RM3889124 (aftermarket reference)

Parts Desk Insights

The most common mistake with this belt is ordering by displacement alone. The 3889124 is specifically for G, GF, H, and HF-generation engines — other 4.3L, 5.0L, and 5.7L variants use different belts (see 3860086 and 3586326 for other configurations). Checking the engine model suffix and confirming against the maintenance diagram is the fastest way to get the right belt. When the belt is being replaced, it’s also worth checking the tensioner — a belt that has been squealing or walking off a pulley is often a tensioner problem, not just a worn belt.