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Silver metal spin-on lube filter with transparent housing and 3/4 inch threads

Baldwin Filters

Baldwin Filters BT40038 17 Micron Spin-On Lube Filter

SKU CH-43ZC-E3JBT

Spin-on lube filter rated at 17 micron with 11 to 16 psid bypass valve and anti-drainback valve

  • Product colorTransparent
  • 17 micron rating traps fine contaminants
  • Spin-on design allows quick filter changes
  • 11-16 psid bypass valve maintains oil flow
  • Anti-drainback valve prevents dry starts
  • 3/4 in.-16 thread fits compatible engines

Application and fit

The Baldwin Filters BT40038 is a spin-on lube filter built for automotive HVAC control systems. Its 17 micron rating targets fine contaminant capture during normal oil circulation. The 3/4 in.-16 thread size matches compatible engine mounts directly. Installers needing a direct-fit replacement for this specification will find the dimensions align with the original equipment.

Sustained-flow behaviour

The integrated 11-17 psid bypass valve opens only when differential pressure exceeds the set range, allowing uninterrupted lubrication during cold starts or heavy load. The anti-drainback valve retains oil in the canister after shutdown, reducing dry-start wear on subsequent ignition. Together they maintain consistent flow without manual intervention across repeated duty cycles.

Build and daily implications

The metal canister measures 3-9/32 in. in height and 3 in. in outside diameter, fitting standard spin-on clearance envelopes. A transparent finish lets technicians verify media condition at a glance during routine checks. The single-unit packaging supports quick change-outs without special tools, keeping service intervals predictable for fleet or shop environments.

How it compares

Measured against everything we stock in Heating & Cooling Controllers, at today’s prices. Recalculated every night.

Price $9.99
Cheaper than about 90% of the 1,762 comparable items (median $45.99).

Specifications

Product
Brand nameBALDWIN FILTERS
Product colorTransparent

Questions about this item

How much heat does the BT40038 generate during continuous engine operation?

The BT40038 is a passive spin-on lube filter with no moving parts or electrical components, so it produces no measurable heat of its own during all-day operation.

What thread size must the engine block have for the BT40038 to install correctly?

The filter requires a 3/4 In. -16 thread on the engine mounting pad for proper sealing and installation.

Will the 17 micron rating of the BT40038 restrict flow on an older engine with wider bearing clearances?

The 17 micron media filters finer particles while the 11-17 psid bypass valve opens if pressure drop becomes excessive, protecting older engines from oil starvation.

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