VOLVO 20792871 Cylinder Head Gasket Specification

Genuine VOLVO Cylinder Head Gasket 20792871

Product Overview: The Genuine VOLVO Cylinder Head Gasket (P/N: 20792871 / VOE20792871 / 80756711) is a high-performance Multi-Layer Steel (MLS) component engineered for heavy-duty inline diesel engines. Installed between the cylinder block and head, it seals combustion pressures and isolates fluid passages to prevent leaks and engine structural damage.

1. Core Technical Advantages

Multi-Layer Steel (MLS): Premium spring stainless steel layers handle frequent high-impact combustion cycling.
Viton Surface Coating: Full-surface fluorocarbon coating fills micro-imperfections for complete liquid and gas isolation.
Reinforced Fire Ring: Embossed steel rings around cylinder bores resist extreme flame exposure and gas penetration.
Chemical Resistance: Resists erosion from heavy-duty glycols, diesel fuel, and synthetic lubricants under high-thermal conditions.

2. Technical Specifications Matrix

Engineering Parameter	Technical Data & Specification Details
Genuine OEM Part Numbers	20792871 / VOE20792871 / 80756711
Product Classification	MLS Multi-Layer Steel Engine Cylinder Head Sealing Gasket
Applicable Media	Combustion gas, ethylene glycol coolant, engine lubricating oil
Material & Coating	Spring stainless steel base with Viton fluorocarbon surface coating
Bore Protection	Embossed reinforced stainless steel fire ring structure
Assembly Properties	Strictly conforms to factory deck clearance and piston protrusion tolerance standards

3. Master Application Fleet Guide

This gasket is utilized across a wide array of high-torque VOLVO equipment:

Heavy Crawler Excavators: EC240B, EC240B Prime, EC250D, EC290B, EC290B Prime, EC300D
Wheel Loaders: L110F, L120F
Motor Graders: G930, G940, G960, G990
Pipelayers & Asphalt Pavers: PL3005D, P7820D, P8820D, ABG7820, ABG8820B

4. Common Failure Symptoms

White Smoke & Coolant Loss: Coolant seeps into the combustion chamber, causing thick white steam from the exhaust and rapid coolant drops.
Milky Oil Emulsion: Coolant and engine oil mix across internal passages, forming a yellowish-milky sludge that destroys lubrication.
Expansion Tank Bubbling: High-pressure combustion gas escapes past the fire ring into the cooling jacket, causing continuous bubbling in the overflow tank.

Standard Overhaul & Installation Guidelines:
Allow engine to cool for over 2 hours. Drain coolant, remove manifolds, and loosen head bolts in reverse torque sequence. Check head and block flatness; machine if warping exceeds factory limits. Install the new MLS gasket completely dry—no RTV or sprays. Always use brand-new head bolts, tightening them step-by-step strictly following the factory torque-and-angle procedure.

5. B2B Procurement Strategy

Substandard gaskets blow out prematurely, causing expensive equipment downtime. Distributors and workshops should maintain consistent stock of original 20792871 MLS gaskets to safeguard client equipment. We recommend grouping this head gasket with new head bolts, manifold gaskets, and valve cover seals as a single "Top-End Complete Overhaul Kit" to boost B2B order value.

6. Global Brand Cross-Reference Matrix

Brand Designation	Cross-Reference Part Information
VOLVO Original Part No.	20792871 / VOE20792871
Interchangeable Part No.	80756711 / VOE80756711
Supplier	Xuzhou Sinoswift Import & Export Co., Ltd.
Contact	+86 13701956981 / [email protected]

Note: All manufacturer names, brand logos, model series, and part numbers are used for compatibility identification purposes only.