Volvo Penta Lock Ring 872522
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You have 30 days to request a return. All sale items are final sale.
The Volvo Penta Lock Ring 872522 is a genuine OEM retaining ring used to secure internal components within Volvo Penta gear sets and driveline assemblies. This ring provides positive mechanical retention, preventing axial movement of components under load and ensuring proper alignment within the assembly.
Designed to exact OEM specifications, this lock ring is critical in maintaining the integrity of piston, gear, and shaft assemblies—especially in high-load marine propulsion systems.
Key Features
- Genuine Volvo Penta OEM lock ring
- Provides secure retention of internal components
- Prevents axial movement and component separation
- Hardened spring steel construction
- Designed for high-load marine environments
- Direct OEM replacement
Engine / Drive Compatibility
Commonly used in Volvo Penta driveline and gear assemblies, including:
- Volvo Penta diesel engines:
- AD31 / TAMD31 / TAMD41
- KAD42 / KAMD42
- Volvo Penta propulsion systems:
- DPI-A
- IPS series
- HS1 transmissions
✔ Used in gear set and reverse reduction gear assemblies
✔ Works with internal components such as piston rings, disc springs, and thrust washers
Serial Number Fitment Notice
Lock rings are size- and groove-specific. Always confirm compatibility using your engine or drive serial number before ordering.
When This Part Needs Replacement
- Loss of retention or looseness in assembly
- Deformation or loss of spring tension
- Corrosion or wear
- During gear or driveline rebuild
- Preventative replacement during major service
Installation Notes
- Ensure proper seating in groove
- Do not reuse distorted or stretched rings
- Use correct snap ring pliers for installation
- Inspect groove and mating components
- Confirm full engagement before assembly
Alternate / Superseded / Cross-Reference Part Numbers
- Volvo Penta: 872522
- Often used alongside:
- 872563 (piston ring)
- 872570 (thrust washer)
- 872794 (disc spring)
Parts Desk Insight
This is one of those small but critical parts—if it fails or isn’t seated properly, entire gear assemblies can shift and cause major damage. Always replace during teardown rather than reusing.
Shipping
Shipping: Ships same or next day for fast Canada wide shipping. ⚓
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.