Exhaust Intake Manifold Gasket 1266796 1378879 463225 for Volvo Penta AQ125 AQ145 131 151
Exhaust Intake Manifold Gasket 1266796 1378879 463225 for Volvo Penta AQ125 AQ145 131 151
Product Overview
Exhaust and intake manifold gasket for the Volvo Penta AQ125, AQ145, 131 and 151 four cylinder marine engines, the 2.1 to 2.5 L petrol fours. It replaces Volvo Penta 1266796, 1378879 and 463225, and it is the one piece gasket that seals the combined intake and exhaust manifold against the cylinder head.
On these AQ engines the inlet and exhaust runners share a single flange, so one gasket covers both sides. A blown gasket shows up as an exhaust tick at idle, a smell of exhaust in the engine bay, or coolant weeping down the side of the block, depending on where the failure starts.
The fitment covers AQ125A and AQ125B, AQ145A and AQ145B, 131A, 151A and 151B, and the related 120B and 140A engines, the Volvo Penta petrol fours from the late 1970s and 1980s that are still common in small cruisers and day boats.
Specifications
| Specification | Detail |
|---|---|
| Condition | New / New with tags |
| Type | Intake and exhaust manifold gasket |
| Application | Manifold sealing against the cylinder head |
| Material | Composite fibre gasket |
| Quantity | 1 gasket |
OEM Cross Reference
| Brand | OEM Part Numbers |
|---|---|
| Volvo Penta | 1266796 |
| Volvo Penta, alternate | 1378879 |
| Volvo Penta, alternate | 463225 |
Compatible Engines
| Model | Engine Family | Gasket |
|---|---|---|
| AQ125A | Volvo Penta four cylinder petrol | This gasket |
| AQ125B | Volvo Penta four cylinder petrol | This gasket |
| AQ145A | Volvo Penta four cylinder petrol | This gasket |
| AQ145B | Volvo Penta four cylinder petrol | This gasket |
| 131A | Volvo Penta four cylinder petrol | This gasket |
| 151A | Volvo Penta four cylinder petrol | This gasket |
| 151B | Volvo Penta four cylinder petrol | This gasket |
| 120B | Volvo Penta four cylinder petrol | This gasket |
| 140A | Volvo Penta four cylinder petrol | This gasket |
What's Included
| Component | Detail | Qty |
|---|---|---|
| Manifold gasket | 1266796 pattern | 1 |
| Manifold studs and nuts | Not included, reuse or renew separately | 0 |
| Exhaust elbow gasket | Not included, order separately | 0 |
Signs the Manifold Gasket Has Gone
| What You Find | What It Means | What To Do |
|---|---|---|
| Ticking at idle that fades with revs | Exhaust blowing past the gasket | Renew the gasket, check the flange for warp |
| Black soot track on the block | Leak path is visible | Clean and check the faces before fitting |
| Exhaust smell in the engine bay | Leak under the cover | Renew and check the manifold studs |
| Coolant weeping down the block | Corrosion under the gasket | Check the head face, renew the gasket |
| Warped manifold flange | Overheat or a seized stud | Machine or renew the manifold first |
| Snapped manifold stud | Rusted stud in an iron head | Drill and helicoil before refitting |
Old AQ Petrol Engines and Heat
| How the Engine Is Used | Effect on the Gasket | What To Do |
|---|---|---|
| Raw water cooling, salt water | Corrosion creeps under the gasket | Check the faces at every manifold service |
| Fresh water cooling conversion | Hotter head face, same gasket | Retorque after the first heat cycle |
| Long periods laid up | Gasket dries and sticks | Renew rather than reuse after a lay up |
| Overheat from a blocked intake | Head and manifold faces distort | Check both faces before fitting |
| Petrol engine idled a lot | Heat soak in the engine bay | Check the exhaust side first |
| Boat used in the sea only | Studs seize in the head | Soak the studs before undoing them |
Fitting Notes
| Step | Action |
|---|---|
| 1 | Check the number on the old gasket, 1266796, 1378879 and 463225 are the same part |
| 2 | Confirm the engine model, this covers AQ125, AQ145, 131 and 151 plus 120B and 140A |
| 3 | Soak the manifold nuts with penetrant and undo them evenly, the studs seize |
| 4 | Scrape both faces clean and check them with a straight edge for warp |
| 5 | Fit the gasket dry, no sealant on a composite gasket |
| 6 | Torque the nuts in sequence from the centre outwards |
| 7 | Run the engine to temperature, let it cool and retorque once |
| 8 | Check for soot tracks and coolant weeping after the first run |
Condition & Warranty
| Item | Detail |
|---|---|
| Condition | New / New with tags |
| Warranty | Standard |
| Packaging | Sealed retail packaging |
Before You Buy
- Check the number on the old gasket, 1266796, 1378879 and 463225 interchange
- Fits Volvo Penta AQ125A, AQ125B, AQ145A, AQ145B, 131A, 151A, 151B, 120B and 140A
- This is the manifold gasket only, studs and elbow gaskets are not included
- Check the manifold flange for warp before fitting a new gasket
- Torque from the centre outwards and retorque after the first heat cycle
- Fit dry, no sealant on this composite gasket
- 30-Day Easy Returns
- Ships from our warehouse with tracking
Verfügbarkeit für Abholungen konnte nicht geladen werden
Boat Owners' Review
Before You Buy
Frequently Asked Questions
What is your refund policy?
We offer a 14-day hassle-free return on all products. Items must be unused and in original packaging. Every XRmarine part is also covered by our 1-year warranty against manufacturing defects. If something is not right, email us at info@xrmarineparts.com — replacement or full refund, your choice.
See our full Refund Policy for complete details.
How does shipping work?
Free international shipping on every order — no minimums. We operate a global warehouse network with a main distribution centre in Asia (10-20 business days). We also hold stock in regional warehouses across the United States, Germany, the United Kingdom, Australia, and Poland (opening soon) — most orders arrive in 1-3 business days within those countries and in 2-8 business days to nearby regions. Tracking included.
See our full Shipping Policy.
How do you keep prices fair?
We cut out the middlemen. XRmarine sources directly from quality manufacturers and sells at honest prices. Same OEM-quality parts, no dealership markup. Every order comes with free shipping, real expert support, and a 1-year warranty.
Learn more on our About Us page.
What payment methods do you accept?
We currently accept PayPal — a fast, secure way to pay online. Credit card payments (Visa, Mastercard, American Express) and Shopify Payments are being set up and will be available soon. We appreciate your patience.