Volvo Penta Trim Pump 21945915
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Volvo Penta 21945915 is a genuine OEM power trim pump assembly used to raise and lower compatible Volvo Penta sterndrives through the hydraulic trim system. It is used on SX-A, DPS-A, and DPS-B drive families and is supplied as a complete trim-pump assembly rather than a bare electric motor. Current Volvo Penta references show 24331547 as the superseding service kit for 21945915.
Key Features
- Genuine Volvo Penta OEM trim pump
- OEM part number 21945915
- Hydraulic power-trim and tilt pump assembly
- Fits SX-A, DPS-A, and DPS-B sterndrive families
- Original assembly includes the pump, housing, and hydraulic-line components
- Used with Volvo Penta trim-system gasket 3841015 and associated hose kit hardware
- Current service replacement 24331547 includes the updated pump, cover, and new-style hose kit
Drive Compatibility
Confirmed Volvo Penta drive applications include:
- SX-A
- DPS-A
- DPS-B
- DPS-A OXi
- DPS-B OX
- Related SX-A gear-ratio variants including 1.43, 1.51, 1.60, 1.66, 1.79, 1.89, 1.97, and 2.18
Additional TSK-A, TSK-B, and related transom-shield configurations also use this trim-pump family.
Serial Number Fitment Notice
Confirm 21945915 / 24331547 against the sterndrive model, transom-shield configuration, and engine or drive serial number before ordering. Earlier SX-A and DPS-A installations may require the updated hydraulic lines supplied with the later service kit.
When This Part Needs Replacement
Replace the trim pump if the drive raises or lowers slowly, will not hold trim position, operates intermittently, produces abnormal pump noise, leaks hydraulic fluid, or has a confirmed motor or hydraulic-pump failure. Before replacing the complete assembly, inspect fluid level, hydraulic hoses, electrical connections, relays, and trim cylinders to rule out faults elsewhere in the system.
Installation Notes
The applicable Volvo Penta trim-system breakdown shows the pump assembly used with:
- 3841015 – Gasket
- 21481309 – Hose kit
- 3883773 – Connector
- 22081338 – Trim-pump cover kit
- Related O-rings, plug, retaining hardware, and ground cable
When converting an earlier installation to the updated service kit, use the supplied updated hydraulic lines where required rather than reusing incompatible earlier hoses. Refill and bleed the trim system according to Volvo Penta service procedures.
Alternate/Superseded Part Numbers
- 21945915 – Volvo Penta trim pump
- 24331547 – Current Volvo Penta trim pump service kit / superseding reference
- 21573834 – Earlier Volvo Penta trim pump
- 3848796 – Earlier reference
- 3884407 – Earlier reference
- 21481307 – Earlier related trim-pump reference
- 24651980 – Intermediate Volvo Penta replacement reference associated with this pump family
Parts Desk Insight
The main thing to watch with 21945915 is the updated hose configuration. The current 24331547 service kit is designed to service earlier SX-A and DPS installations and includes the newer trim lines, so compare the complete pump-and-hose setup before installation rather than swapping only the pump.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 3–4 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.