Crusader Throttle Body Mounting Gasket | MP7.4L MP8.1L MP6.0L | OEM Part RM0251
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Crusader Throttle Body Mounting Gasket — OEM Part RM0251
Genuine Crusader / PCM OEM throttle body mounting gasket for compatible Crusader MP7.4L, MP8.1L, and MP6.0L marine engines. RM0251 seals the throttle body to the intake manifold or throttle body adapter plate, preventing unmetered air from entering the intake system. Factory Crusader parts manuals identify RM0251 specifically as the throttle body mounting gasket on multiple gasoline engine families.
Part Information
- Part Number: RM0251
- Brand: Crusader / PCM (Pleasurecraft Marine)
- Official Product Type: Throttle Body Mounting Gasket
- System: Fuel & Air — Throttle Body / Intake
- Quantity: 1 gasket per assembly
- Note: RM0251 is the throttle body mounting gasket, not the main intake manifold gasket. These are different parts.
Compatible Applications
- Crusader MP7.4L — throttle body mounting gasket as specified in factory parts diagram
- Crusader MP8.1L — used directly beneath the mechanical or electronic throttle body assembly
- Crusader MP6.0L — used with the R062087 throttle body adapter plate and RA035036B throttle body assembly
- Compatible with both mechanical and electronic throttle body configurations depending on engine model
- Always confirm fitment by engine model, serial number, and parts diagram before ordering
Diagram Position
RM0251 is located at the throttle body-to-intake manifold (or throttle body adapter plate) interface. On MP6.0L engines, factory diagrams show RM0251 used together with the R062087 throttle body adapter plate and a separate throttle body seal — inspect all neighboring components during service.
Related Part Numbers
- RM0251 — Throttle body mounting gasket (this part)
- R062087 — MP6.0L throttle body adapter plate (not in store)
- RA035036 / RA035036A / RA035036B — Related mechanical throttle body assemblies (not in store)
- RA035041 — Related electronic throttle body assembly (not in store)
- RM0277 — MP6.0L intake manifold gasket set — not the same as RM0251
When to Replace
- Whenever the throttle body is removed for service or cleaning
- Visible tearing, compression damage, or deterioration of the gasket
- Evidence of an intake air leak — unstable idle, incorrect air metering, or drivability issues
- During throttle body adapter plate replacement on MP6.0L engines
Service Interval
- Replace whenever the throttle body is removed — do not reuse a compressed or disturbed gasket
- Inspect during any intake system service for signs of deterioration or air leakage
Installation Notes
- Clean both mating surfaces thoroughly before installation — ensure no old gasket material remains on either surface
- Install the gasket in the correct orientation as shown in the Crusader parts diagram
- Tighten throttle body fasteners to the torque specification in the Crusader service manual
- On MP6.0L applications, inspect the R062087 adapter plate and the separate throttle body seal at the same time
- After installation, check for intake air leaks at idle before returning the engine to service
Technical FAQ
Is RM0251 the same as the intake manifold gasket?
No. RM0251 is the throttle body mounting gasket — it seals the throttle body to the intake manifold or adapter plate. The main intake manifold gasket is a separate part (RM0277 on MP6.0L applications). Confirm which gasket you need using the engine parts diagram before ordering.
Why is this sometimes called a TBI or plenum gasket?
RM0251 is informally referred to as a TBI or plenum gasket in some references, but factory Crusader documentation consistently identifies it as the throttle body mounting gasket at the throttle body-to-intake connection. The correct factory name is throttle body mounting gasket.
Does this fit both mechanical and electronic throttle body configurations?
Yes. RM0251 is used with both mechanical (RA035036 series) and electronic (RA035041) throttle body assemblies depending on the engine model. Confirm the throttle body type and diagram position for your specific engine before ordering.
Parts Desk Insights
Best Use Case: RM0251 is the correct OEM throttle body mounting gasket for Crusader MP7.4L, MP8.1L, and MP6.0L owners replacing a leaking or damaged throttle body gasket, or for those performing throttle body service where the gasket should be replaced as a matter of course. At $2.00, it is a low-cost item that should always be replaced whenever the throttle body is removed.
Common Customer Issue: The most frequent issue is confusing RM0251 (throttle body mounting gasket) with the intake manifold gasket (RM0277 on MP6.0L). These are different gaskets in different positions. Always confirm the gasket position in the engine parts diagram before ordering.
Related Products
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 1-3 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
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