Volvo Penta 0.15 mm Setup Shim 977911 | DPH DPR HS1A Drive Transmission
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Part Details
- Part Number: 977911
- Brand: Volvo Penta
- Type: Precision setup shim
- Thickness: 0.15 mm
- System: DPH/DPR sterndrive — drive shaft/bearing housing and extension-kit assemblies; HS1A reverse gear — transmission setup
- Qty Per Assembly: As required (selected by measurement during assembly)
- Weight: Approx. 0.05 kg
- Important: This is a precision setup shim — the quantity used is determined by workshop measurement, not by a fixed number per assembly. Do not add or remove shims to compensate for unrelated wear.
About This Part
Genuine Volvo Penta 977911 is a 0.15 mm OEM precision shim used to establish correct bearing position, component spacing, or assembly clearance in selected Volvo Penta DPH/DPR sterndrives and HS1A reverse-gear transmissions. Parts manuals place 977911 in shim stacks alongside companion thicknesses 977910 (0.10 mm) and 977912 (0.35 mm), with the final combination selected by measured workshop requirement to achieve the specified setup dimension. Because the same part number appears in both DPH/DPR drive assemblies and HS1A transmission assemblies, the correct quantity and combination must always be determined from the applicable Volvo Penta workshop procedure for the specific assembly being set up — not assumed from a previous build.
Compatible Applications
- Volvo Penta DPH-A / DPH-B — drive shaft/bearing housing and 1-inch extension-kit assemblies
- Volvo Penta DPR-A / DPR-B — drive shaft/bearing housing and 1-inch extension-kit assemblies
- Volvo Penta DPH-D1 — extension-kit assemblies
- Volvo Penta DPR-D — extension-kit assemblies
- Volvo Penta HS1A (all ratios) — reverse-gear transmission setup
- Volvo Penta HS1A 1.96:1 — reverse-gear transmission setup
- Volvo Penta HS1A 2.62:1 — reverse-gear transmission setup
977911 should be selected by measured shim requirement and exact diagram position, not by drive model alone. The correct shim combination is determined during assembly by following the applicable Volvo Penta workshop procedure for the specific assembly being set up.
Shim Thickness Options — Same Assembly Family
- 977910 — 0.10 mm
- 977911 — 0.15 mm (this part)
- 977912 — 0.35 mm
These are different-thickness shims used to build the required total shim stack — they are not superseding numbers or substitutes for each other.
When to Use
A new shim is required when:
- The original shim is damaged, distorted, or corroded
- A bearing, housing, gear, or related component replacement changes the required setup dimension
- Workshop measurement during reassembly specifies a 0.15 mm shim in the stack
Do not add or remove shims to compensate for unrelated wear or to force a component into position. The shim combination must be verified by measurement according to the applicable Volvo Penta workshop procedure after any bearing or precision component replacement.
Installation Notes
Measure and assemble the shim stack according to the applicable Volvo Penta workshop procedure for the exact assembly. Do not assume the original shim combination will remain correct after replacing bearings, housings, gears, or other precision components — any of these replacements can change the required setup dimension. For DPH/DPR applications, 977911 typically works alongside 977910 and 977912, with the final combination selected to achieve the specified preload or clearance.
Cross-Reference Part Numbers
- OEM: 977911 (0.15 mm)
- Companion shims: 977910 (0.10 mm), 977912 (0.35 mm)
- Note: No confirmed Volvo Penta OEM superseding number identified.
Parts Desk Insight
977911 is a setup shim, not a generic spacer, and the quantity needed is always determined by measurement — not by a fixed rule. The most common issue is attempting to reuse the original shim combination after replacing a bearing or housing without re-measuring the setup dimension. Any precision component replacement in the DPH/DPR drive shaft area or HS1A transmission can shift the required shim stack, and assuming the original combination still applies is a leading cause of incorrect bearing preload after service. If ordering 977911 for a full assembly setup, consider ordering the companion thicknesses 977910 and 977912 at the same time so the correct combination can be built on the bench without a second order.
Shipping information
In-stock and OEM parts: ship same or next business day.
Supplier-stock items are usually ready for pickup or shipping within 24 hours of ordering.
Special-order timing may vary.
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.