Crusader Oil Line Hose 5.7L/6.0L | Remote Oil Filter System | OEM Part RA045155A
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Crusader Oil Line Hose 5.7L/6.0L — OEM Part RA045155A
Genuine Crusader / PCM OEM oil line hose for the remote oil filter circuit on selected Crusader MP5.7L and MP6.0L marine engines. Factory Crusader parts manuals identify RA045155A as a pressure-side hose in the remote oil filter system, with its specific circuit position varying by engine generation — see the fitment notice below to confirm the correct hose for your application.
Part Information
- Part Number: RA045155A
- Brand: Crusader / PCM (Pleasurecraft Marine)
- Official Product Type: Oil Line Hose — Remote Oil Filter System
- Circuit Position (MP6.0L): Oil cooler → remote oil filter
- Circuit Position (MP5.7L): Remote oil filter header → bypass adapter
- System: Engine Lubrication — Remote Oil Filter Circuit
- Quantity: 1 hose per assembly
Compatible Applications
- Crusader MP5.7L marine engines with remote oil filter system
- Crusader MP6.0L marine engines with remote oil filter system
- Always confirm the hose position in the lubrication system diagram for your specific engine model before ordering — the circuit position of RA045155A differs between MP5.7L and MP6.0L configurations
Fitment Notice — RA045155A vs. RA045155
RA045155A and RA045155 are different hoses in different positions in the same remote filter circuit. On the MP6.0L system:
- RA045155 — oil bypass adapter → remote oil filter
- RA045155A (this part) — oil cooler → remote oil filter
- RA045103D — oil cooler → adapter
On the MP5.7L system, RA045155A is identified as the filter-header-to-bypass-adapter hose. Because hose routing differs by engine generation, always confirm the exact engine model and remote filter diagram before ordering. Matching the hose by its two connection points is the safest fitment check.
Related Part Numbers
- RA045155A — Remote oil filter system hose (this part)
- RA045155 — Adapter-to-filter oil hose — see RA045155
- RA045103D — Oil cooler hose assembly — see RA045103D
- R047245 — Related oil-line O-ring — see PCM O-Ring R047245
When to Replace
- Visible oil seepage at the hose body or crimped end fittings
- Cracking, hardening, or surface deterioration of the hose
- Swelling or softness indicating internal breakdown
- Abrasion damage or chafing along the hose routing
- Damaged or corroded end fittings
- Preventative replacement during remote oil filter system service on high-hour engines
Service Interval
- Inspect annually for cracking, swelling, oil leaks, and fitting condition
- Replace immediately if leaks or deterioration are found — this hose carries pressurized engine oil and any leakage should be addressed promptly
- Replace during remote oil filter service or any service that requires disconnecting the oil filter circuit
Installation Notes
- Inspect the remote oil filter header, oil cooler, fittings, and sealing O-rings while replacing the hose — see PCM O-Ring R047245 for the related oil-line O-ring
- Ensure end fittings are fully seated and torqued to the specification in the Crusader service manual
- Run the engine and inspect all hose connections for leaks while verifying normal oil pressure after installation
Technical FAQ
What is the difference between RA045155A and RA045155?
On the MP6.0L system, RA045155A connects the oil cooler to the remote oil filter, while RA045155 connects the oil bypass adapter to the remote oil filter. On the MP5.7L system, RA045155A is the filter-header-to-bypass-adapter hose. These are different hoses in different positions and are not interchangeable. Matching the hose by its two connection points against the engine diagram is the safest way to confirm the correct part.
Does the circuit position change between MP5.7L and MP6.0L?
Yes. The routing of RA045155A differs between engine generations. Always confirm the exact engine model and consult the remote filter diagram for your specific engine before ordering.
Parts Desk Insights
Best Use Case: RA045155A is the correct OEM replacement for Crusader MP5.7L and MP6.0L owners replacing a leaking or deteriorated oil line hose in the remote oil filter circuit. It is particularly well-suited for preventative maintenance on high-hour engines where rubber hose assemblies are being replaced as part of a scheduled lubrication system service.
Common Customer Issue: The most frequent ordering mistake is confusing RA045155A with RA045155. Both hoses are in the same remote filter circuit but connect different components, and the routing of RA045155A also differs between MP5.7L and MP6.0L configurations. Identifying the hose by its two connection points against the engine diagram — not by appearance or engine displacement alone — is the safest way to confirm the correct part 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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