Baldwin Filters
Baldwin Filters B178 HVAC control
Spin-on oil filter with 18 micron rating, 30 psid bypass and anti-drainback valve for Audi, BMW, Dodge, Porsche, Volkswagen and industrial equipment
- ColorTransparent
- 18 micron filtration protects engine components
- 30 psid bypass valve maintains oil flow
- Anti-drainback valve prevents dry starts
- 3/4"-16 thread fits multiple applications
- 5-1/8" height suits compact installations
Baldwin Filters B178 spin-on oil filter
The Baldwin Filters B178 is a full-flow spin-on oil filter built for automotive and equipment engines. It fits Audi, BMW, Dodge, Porsche and Volkswagen vehicles as well as Bobcat, Deutz, Ingersoll-Rand and Vermeer machinery. The 3/4"-16 thread allows direct installation on compatible filter heads.
18 micron rating and 30 psid bypass valve
The filter media captures particles down to 18 micron while maintaining flow under normal pressure. A 30 psid bypass valve opens if the element becomes restricted, ensuring lubrication continues during cold starts or heavy contamination. The anti-drainback valve retains oil in the filter after shutdown for faster pressure build-up on restart.
Replaces canister or cartridge filters on listed
This spin-on unit replaces older canister or cartridge-style filters where the housing and thread match the 3/4"-16 specification. The change is worth it when service speed matters, because the self-contained canister removes in one step without draining a separate housing. It is not for engines that require a different thread pitch, a larger diameter or a higher micron rating.
Highlights
- 18 micron filtration protects engine components
- 30 psid bypass valve maintains oil flow
- Anti-drainback valve prevents dry starts
- 3/4"-16 thread fits multiple applications
- 5-1/8" height suits compact installations
Specifications
| Brand | BALDWIN FILTERS |
|---|---|
| Color | Transparent |
Questions about this item
Which thread size and length match my engine's filter housing?
The B178 uses a 3/4"-16 thread and measures 5-1/8" in length with a 3" outside diameter, so verify those dimensions against your housing before ordering.
What does the 18 micron rating mean for everyday engine protection?
An 18 micron rating means the media traps particles 18 microns and larger, balancing fine filtration with adequate oil flow for the listed Audi, BMW, Dodge, Porsche, Volkswagen and equipment applications.
How does the 30 psid bypass valve affect filtration during cold starts?
The 30 psid bypass opens only when pressure differential reaches that level, allowing oil to circulate if the filter clogs or during thick-oil conditions while the anti-drainback valve prevents dry starts.
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