Timing Cover Gasket – Fits Mercury Marine/Mercruiser GM V-6/V-8 Engines (27-14250)
Timing Cover Gasket – Fits Mercury Marine/Mercruiser GM V-6/V-8 Engines (27-14250) is backordered and will ship as soon as it is back in stock.
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Worry-free returns
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Delivery and Shipping
Delivery and Shipping
Free standard shipping on all orders under 1 KG
Timing Cover Gasket – Fits Mercury Marine/Mercruiser GM V-6/V-8 Eng...
Product Details
This replacement Timing Cover Gasket (27-14250) is designed to fit a wide range of Mercury Marine/Mercruiser GM V-6 and V-8 engines. It is compatible with GM V-6 262 cubic inch (4.3L) engines from 1985–1993 and GM V-8 283, 305, 327, and 350 cubic inch engines produced between 1963 and 1995, ensuring a precise seal between the timing cover and engine block.
It serves as a direct interchange for Mercury/Quicksilver 27-14250, Sierra 18-0976, and FI1101297.
- Installs between the timing cover and the engine block to prevent oil and coolant leaks.
- Made from a high-quality composite/paper material for durability and proper sealing.
- Covered by a standard 1-year factory warranty from Mercury Marine.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number | Notes |
|---|---|---|
| Mercury/Quicksilver | 27-14250 | OEM Reference |
| Mercury/Quicksilver | 27-34895 | Superseded Part - Verification Recommended |
| Sierra | 18-0976 | Aftermarket Interchange |
| Flagship Marine | FI1101297 | Aftermarket Interchange |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
This gasket is designed for use on Mercruiser V-6 and V-8 inboard and sterndrive engines.
| Brand | Model | Rated HP | Stroke | Years | OEM Part No. |
|---|---|---|---|---|---|
| Mercruiser | 175 (2 BBL.) GM 262 V-6 | 175 | 4-Stroke | 1987 | 27-14250 |
| Mercruiser | 185 (2 BBL.) GM 262 V-6 | 185 | 4-Stroke | 1985–1987 | 27-14250 |
| Mercruiser | 205 (4 BBL.) GM 262 V-6 | 205 | 4-Stroke | 1985–1987 | 27-14250 |
| Mercruiser | 4.3L (2 BBL.) GM 262 V-6 | 175 | 4-Stroke | 1988–1992 | 27-14250 |
| Mercruiser | 4.3L (GEN II) (2 BBL.) GM 262 V-6 | 175 | 4-Stroke | 1992–1993 | 27-14250 |
| Mercruiser | 4.3LX (4 BBL.) GM 262 V-6 | 205 | 4-Stroke | 1988–1992 | 27-14250 |
| Mercruiser | 4.3LX (GEN II) (4 BBL.) GM 262 V-6 | 205 | 4-Stroke | 1992–1993 | 27-14250 |
| Mercruiser | 190 GM 283 V-8 | 190 | 4-Stroke | 1963–1964 | 27-14250 |
| Mercruiser | 225 (2 BBL.) GM 327 V-8 | 225 | 4-Stroke | 1963–1969 | 27-14250 |
| Mercruiser | 225 MIE GM 327 V-8 | 225 | 4-Stroke | 1968 | 27-14250 |
| Mercruiser | 250 (2 BBL.) GM 327 V-8 | 250 | 4-Stroke | 1968–1969 | 27-14250 |
| Mercruiser | 250 MIE GM 327 V-8 | 250 | 4-Stroke | 1968–1969 | 27-14250 |
| Mercruiser | 270 (2 BBL.) GM 350 V-8 | 270 | 4-Stroke | 1969–1972 | 27-14250 |
| Mercruiser | 270 MIE GM 350 V-8 | 270 | 4-Stroke | 1969–1972 | 27-14250 |
| Mercruiser | 898 (2 BBL.) GM 305 V-8 | 198 | 4-Stroke | 1977–1984 | 27-14250 |
| Mercruiser | 898 (2 BBL.) GM 305 V-8 | 198 | 4-Stroke | 1983–1984 | 27-14250 |
| Mercruiser | 198 MIE (2 BBL.) GM 305 V-8 | 198 | 4-Stroke | 1977 | 27-14250 |
| Mercruiser | 228 (4 BBL.) GM 305 V-8 | 228 | 4-Stroke | 1977–1984 | 27-14250 |
| Mercruiser | 228 MIE (4 BBL.) GM 305 V-8 | 228 | 4-Stroke | 1977–1980 | 27-14250 |
| Mercruiser | 200 (2 BBL.) GM 305 V-8 | 200 | 4-Stroke | 1985–1987 | 27-14250 |
| Mercruiser | 230 (4 BBL.) GM 305 V-8 | 230 | 4-Stroke | 1985–1987 | 27-14250 |
| Mercruiser | 230 MIE (4 BBL.) GM 305 V-8 | 230 | 4-Stroke | 1981–1995 | 27-14250 |
| Mercruiser | 5.0L MIE (4 BBL.) GM 305 V-8 | 230 | 4-Stroke | 1987–1995 | 27-14250 |
| Mercruiser | 5.0L (2 BBL.) GM 305 V-8 | 200 | 4-Stroke | 1988–1995 | 27-14250 |
| Mercruiser | 5.0LX (4 BBL.) GM 305 V-8 | 230 | 4-Stroke | 1988–1995 | 27-14250 |
| Mercruiser | 260 (4 BBL.) GM 305 V-8 | 260 | 4-Stroke | 1978–1987 | 27-14250 |
| Mercruiser | 260 GM 350 V-8 | 260 | 4-Stroke | 1982–1987 | 27-14250 |
| Mercruiser | 260 MIE GM 350 V-8 | 260 | 4-Stroke | 1981–1987 | 27-14250 |
| Mercruiser | 280 TRS GM 350 V-8 | 280 | 4-Stroke | 1975–1976 | 27-14250 |
| Mercruiser | 300 TEMPEST GM 350 V-8 | 300 | 4-Stroke | 1985–1986 | 27-14250 |
| Mercruiser | 320 (EFI) GM 350 V-8 | 320 | 4-Stroke | 1987–1989 | 27-14250 |
| Mercruiser | 350 MAG. ALPHA GM 350 V-8 | 350 | 4-Stroke | 1986–1995 | 27-14250 |
| Mercruiser | 350 MAG. BRAVO MPI GM 350 V-8 | 350 | 4-Stroke | 1995 | 27-14250 |
| Mercruiser | 350 MAG MPI SKI GM 350 V-8 | 350 | 4-Stroke | 1995–1996 | 27-14250 |
| Mercruiser | 5.7L GM 350 V-8 | 350 | 4-Stroke | 1988–1995 | 27-14250 |
| Mercruiser | 5.7L (SKI) GM 350 V-8 | 350 | 4-Stroke | 1985–1987 | 27-14250 |
| Mercruiser | 5.7L COMPETITION SKI GM 350 V-8 | 350 | 4-Stroke | 1987–1995 | 27-14250 |
| Mercruiser | 5.7L MIE GM 350 V-8 | 350 | 4-Stroke | 1988–1995 | 27-14250 |
| Mercruiser | 5.7L ALPHA EFI (TBI) GM 350 V-8 | 350 | 4-Stroke | 1995 | 27-14250 |
| Mercruiser | 5.7L BRAVO EFI (TBI) GM 350 V-8 | 350 | 4-Stroke | 1995 | 27-14250 |
| Mercruiser | 350 Alpha (4 BBL) Crate Engine | 350 | 4-Stroke | All Years | 27-14250 |
| Mercruiser | 350 (4 BBL) Gen+ Crate Engine | 350 | 4-Stroke | All Years | 27-14250 |
| Mercruiser | 350 (4BBL) Crate Alpha | 350 | 4-Stroke | All Years | 27-14250 |
| Mercruiser | 350 (4BBL) Crate Bravo | 350 | 4-Stroke | All Years | 27-14250 |
| Mercruiser | 350 (4BBL) Crate Inboard | 350 | 4-Stroke | All Years | 27-14250 |
| Mercruiser | 357 Alpha 4V | 357 | 4-Stroke | All Years | 27-14250 |
| Mercruiser | 357 Mag Bravo 4V | 357 | 4-Stroke | All Years | 27-14250 |
| Mercruiser | 383 Mag Bravo 4V | 383 | 4-Stroke | All Years | 27-14250 |
Technical Specs
- Product Type
- Timing Cover Gasket
- Installation Location
- Between timing cover and engine block
- Material
- Composite/Paper
- Product Dimensions
- 31.5 cm × 21.5 cm × 0.5 cm
- Weight
- 0.14 kg (5 ounces)
- OEM Part Number
- 27-14250
- Manufacturer
- Quicksilver - Mercruiser
- Warranty
- Mercury Marine standard 1-year factory warranty
What’s in the Box
- 1 x Gasket (27-14250)
Installation Notes
- Disconnect the battery and drain the engine coolant completely.
- Remove any accessory drive belts, pulleys, and tensioners blocking the timing cover.
- Carefully unbolt and remove the harmonic balancer and the old timing cover.
- Thoroughly clean both the engine block and timing cover mating surfaces of any old gasket material or sealant.
- Position the new gasket onto the engine block, ensuring all bolt holes align perfectly.
- Reinstall the timing cover, torquing the bolts to the manufacturer's recommended specifications in the correct sequence.
- Reattach the harmonic balancer, pulleys, and belts.
- Refill the cooling system, reconnect the battery, and check for any leaks after starting the engine.
Troubleshooting & FAQ
How do I know if this timing cover gasket will fit my exact engine model?
This gasket fits a broad range of GM-based V-6 (4.3L) and V-8 (283-350ci) Mercruiser engines from roughly 1963-1996. The best way to confirm fitment is to check the compatibility tables on this page or match your engine's original part number to one of the cross-references provided.
What are the common signs of a failing timing cover gasket?
The most common symptoms are oil or coolant leaks from the front of the engine, around the timing cover. You might notice drips under the engine, low fluid levels, or engine overheating if the leak is severe.
Is any sealant required when installing this gasket?
While some modern gaskets are designed for dry installation, many mechanics prefer to use a thin layer of RTV silicone or gasket sealant, especially at the corners where the timing cover meets the oil pan and intake manifold. Always consult your engine's service manual for specific recommendations.
How often should a timing cover gasket be replaced?
There is no fixed replacement interval. This gasket is typically replaced only when it fails (starts leaking) or during other major engine service, such as a timing chain replacement or engine rebuild.
What is the difference between this aftermarket gasket and an OEM one?
This aftermarket part is designed as a direct replacement for the OEM gasket. It is manufactured to meet or exceed OEM specifications for fit, form, and function, using comparable sealing materials to ensure reliable performance.
Can I reuse my old timing cover bolts during installation?
It is generally recommended to use new bolts, especially if they are torque-to-yield (TTY) bolts. However, if the original bolts are in good condition and not stretched, they can often be reused. Always clean the threads and apply thread sealer or locker as specified in your service manual.
OEM vs. Aftermarket?
This listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.
Shipping speed & cost
We ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.
Warranty & returns
Covered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused & in original condition). See our policy page or reach out for instructions.
Safety & Important Info
- Verify images/specifications vs your original part. If anything differs—even if your model appears compatible—do not purchase.
- This is an aftermarket replacement, not an OEM component.
- Professional installation is recommended for safety and performance.
About Sea Sierra
- Pro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.
- Fast Global Fulfillment — Free standard delivery to most regions in 5–15 days.
- Manufacturer-Direct Value — Fair pricing without compromising on materials or QC.
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