Baldwin Filters
Baldwin Filters BT521 Spin-On 7/8" Thread 7-11/32" L HVAC Control
Spin-on oil filter with 9.8 micron rating, anti-drainback valve and 7/8"-16 thread for Case tractors
- ColorTransparent
- 8 micron rating traps fine particles
- Full-flow spin-on design ensures continuous lubrication
- Anti-drainback valve prevents dry starts
- 7/8"-16 thread fits Case tractors directly
- Integral G381-A gasket seals without extra parts
Baldwin BT521 Spin-On Filter
The Baldwin BT521 is a spin-on oil filter built for Case tractors and compatible equipment requiring a 7/8"-16 thread. Its full-flow lube design delivers reliable engine protection for agricultural and heavy-duty machinery operators. The transparent housing allows quick visual inspection of the element condition during routine maintenance checks.
9.8 Micron Rating Filtration
A 9.8 micron rating captures fine contaminants while maintaining proper oil flow through the full-flow circuit. The G381-A integral gasket creates a secure seal against the mounting surface to prevent bypass leakage. An anti-drainback valve retains oil in the filter after shutdown for faster pressure build-up on restart.
Sustained Load Performance
Under continuous operation the filter maintains consistent flow resistance as contaminant capacity increases toward service interval limits. The robust canister construction withstands pressure spikes common in hydraulic-driven cooling fans and transmission circuits. The anti-drainback valve continues to function reliably across repeated hot-cold cycles in demanding field conditions.
Highlights
- 8 micron rating traps fine particles
- Full-flow spin-on design ensures continuous lubrication
- Anti-drainback valve prevents dry starts
- 7/8"-16 thread fits Case tractors directly
- Integral G381-A gasket seals without extra parts
Specifications
| Brand | BALDWIN FILTERS |
|---|---|
| Color | Transparent |
Questions about this item
What does the 9.8 micron rating mean for my engine?
It captures particles down to 9.8 microns, protecting bearings and rings from abrasive wear in a full-flow lube system.
How does the 7/8"-16 thread affect installation?
The 7/8"-16 thread matches the Case tractor mounting boss; spin it on until the integral G381-A gasket seats.
Will the 7-11/32" height clear my engine bay?
Overall height is 7-11/32 inches with a 4-1/4 inch diameter; verify that space against your Case tractor's filter pad.
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