20845937 Piston | Genuine Volvo Penta Part
20845937 Piston | Genuine Volvo Penta Part
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✓ Authorised Volvo Penta Dealer · Genuine Volvo Penta parts · Ships Australia-wide
🔧 Product Description
Application-specific D9 Steel Piston with Cooling Gallery used in the piston, cylinder-head and crank mechanism assembly on the listed Volvo Penta engines. Receives combustion pressure, transfers force through the piston pin and connecting rod, and conducts heat into the cylinder liner and cooling oil.
🚤 Compatibility
Typically suits:
- Volvo Penta D9A2J
- Volvo Penta D9A2G
- Volvo Penta D9A2L MH
- Volvo Penta D9A2D
- Volvo Penta D9A2B
- Volvo Penta D9A2F
- Volvo Penta D9A2K
- Volvo Penta D9A2H
- Volvo Penta D9A2M MP
- Volvo Penta D9A2A
- Volvo Penta D9A2C
- Volvo Penta D9A2E
- Engine Family: D
- HP Range: Approximately 300-425 HP
- Year Range: Approximately 2002 - 2012
⚙️ Key Features
- Genuine Volvo Penta D9 Steel Piston with Cooling Gallery
- Designed for the piston, cylinder-head and crank mechanism assembly
- Receives combustion pressure, transfers force through the piston pin and connecting rod, and conducts heat into the cylinder liner and cooling oil
- 20845937 - D9 steel piston with internal cooling gallery
- Engine type: 9-litre six-cylinder turbocharged diesel
🔌 Function
Receives combustion pressure, transfers force through the piston pin and connecting rod, and conducts heat into the cylinder liner and cooling oil.
⚠️ Common Signs of Failure
- Low compression, abnormal combustion or cylinder imbalance
- Knocking, tapping or abnormal valve-train noise
- Excessive oil consumption, blow-by or exhaust smoke
- Out-of-spec clearance, wear, scoring or heat damage during overhaul
- Loss of power or metallic debris found in the lubricating oil
🛠️ Service Notes
- Measure all mating parts and clearances against the exact engine specification rather than replacing the component by appearance alone.
- Use clean engine-assembly practices, correct lubricants and the specified tightening sequence.
- Measure the liner, piston protrusion, pin and connecting-rod bush; install the correct matched ring set.
🔄 Supersession & Cross Reference
OEM / Related Numbers
- MotorDetal cross codes 40 276 600 / 038 57 00
- 20842165 - piston-ring set
- 20845144 - valve-seat reference
- 20510743 - valve-spring washer
- 20510747 - valve cotter
- 20766790 - bearing references
- 20790423 - bearing references
- 20790428 - bearing references
- 20905400 - valve guide
Other-Brand OEM Numbers
- VOE20845937 - Volvo Construction Equipment prefixed number format
📦 Condition
- Genuine Volvo Penta part
- Brand new
- Supplied in original or equivalent packaging
Shipping & Delivery
Shipping & Delivery
Flat-rate shipping Australia-wide — $14.99 per order, no matter how many parts you add. Orders dispatch from our Kadina, South Australia store. Need it urgently or want to collect in person? Call us on 0412 532 984 before ordering.
Returns & Warranty
Returns & Warranty
14-day change-of-mind returns — if it's not right or you ordered the wrong part, send it back within 14 days in new, unused condition for a refund or exchange. Manufacturer warranties apply to new parts. Full details in our Refunds & Returns policy.
Not sure this fits?
Not sure this fits?
Ask us before you buy — we check part numbers and fitment every day. Call 0412 532 984 (Mon–Fri 8.30am–4.30pm) or message us through the contact page with your engine or vehicle details.
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