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Fleetguard Filter-Oil, Cellulose, Spin-On | LF17537FLG
Brand:
Peterbilt Parts
SKU:
LF17537FLG
Price:
$33.86
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Lube Filters For Peterbilt Trucks
The engine oil filter is the first line of defense for your diesel engine's internal components, capturing metal particles, soot, and combustion byproducts that would otherwise circulate through bearings, cylinder walls, and valve train components. On heavy-duty diesels, filter quality and change interval compliance directly affect engine longevity. We carry lube filters for Peterbilt trucks with PACCAR MX, Cummins, and other diesel engine platforms.
Frequently asked questions about lube filters
How often should the lube filter be changed on a Peterbilt?
Oil filter change intervals on Peterbilt trucks are tied to the engine oil change schedule, which varies by engine, oil type, and application. On PACCAR MX engines running CK-4 oil, extended drain intervals with oil analysis can reach 50,000 miles or more under ideal conditions, though most fleets use shorter intervals of 15,000 to 25,000 miles for conventional PM schedules. Always change the oil filter at every oil change -- running a new charge of oil through an old, saturated filter defeats the purpose of the oil change.
Does oil filter quality actually matter on a diesel truck?
Yes -- significantly. Filter media quality, bypass valve rating, anti-drain back valve performance, and burst pressure rating all vary between filter brands. A low-quality filter with poor media may allow finer particles to pass, or may collapse under high cold-start oil pressure rather than maintaining flow through the media. For heavy-duty diesel engines where the cost of an internal failure is substantial, using a quality filter from an established brand that meets or exceeds OEM specifications is worth the small price premium over the cheapest option on the shelf.
What is the bypass valve in an oil filter and when does it open?
The bypass valve is a pressure relief valve built into the oil filter that opens when the filter media becomes sufficiently clogged to create a pressure drop that would starve the engine of oil. When the bypass valve opens, unfiltered oil flows directly to the engine rather than stopping lubrication entirely. This is a fail-safe -- not a normal operating mode. A bypass valve that's frequently opening indicates the filter is overdue for replacement or that there's an excessive contamination issue in the oil. Running an engine on bypass oil accelerates wear on all lubricated surfaces.