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BALDWIN FILTERS Oil Filter: B421, M20-1.50 Thread Size, 2 7/8 in Overall Ht, 3 in Outside Dia - Spin-On Oil Filters
BALDWIN FILTERSSpin-On Oil Filters

BALDWIN FILTERS Oil Filter: B421, M20-1.50 Thread Size, 2 7/8 in Overall Ht, 3 in Outside Dia

The BALDWIN FILTERS B421 is a spin-on oil filter with an M20-1.50 thread size, designed for Isuzu vehicles. It features a cellulose media and includes a 14 psid bypass valve, with an overall height of 2 7/8 inches…

SKU 3G-OTH-498253

Brand
BALDWIN FILTERS
Item
Oil Filter: B421, M20-1.50 Thread Size, 2 7/8 in Overall Ht, 3 in Outside Dia
Category
Spin-On Oil Filters
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Technical Specifications

BALDWIN FILTERS
Manufacturer Part Number
B421
Type
M20-1.50 Thread Size, Oil
Includes
14 psid Bypass Valve
Overall Ht
2 7/8 in
Outside Dia
3 in
Media Material
Cellulose
Baldwin Interchange
B421
Compatible Vehicle Make
Isuzu
View Full Spec Sheet

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BALDWIN FILTERS Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The BALDWIN FILTERS B421 is a spin-on oil filter with an M20-1.50 thread size, designed for Isuzu vehicles. It features a cellulose media and includes a 14 psid bypass valve, with an overall height of 2 7/8 inches and an outside diameter of 3 inches.

Frequently Asked Questions

What is the BALDWIN FILTERS B421 oil filter used for?

The BALDWIN FILTERS B421 is a spin-on oil filter designed for Isuzu vehicles. It removes contaminants from engine oil using cellulose media, helping protect engine components. The integrated 14 psid bypass valve ensures oil flow continues if the filter becomes restricted.

What are the specifications of the BALDWIN FILTERS B421 oil filter?

The BALDWIN FILTERS B421 has an M20-1.50 thread size, 2 7/8 in overall height, and 3 in outside diameter. It uses cellulose media and includes a 14 psid bypass valve. The Baldwin Interchange number is B421, and it is compatible with Isuzu vehicles.

Where to buy the BALDWIN FILTERS B421 oil filter worldwide?

3G Electric supplies the BALDWIN FILTERS B421 oil filter to customers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your location. Contact us for pricing and lead time on this genuine Baldwin Filters part.

How to install the BALDWIN FILTERS B421 oil filter?

Installation follows standard spin-on filter practice: lubricate the gasket, hand-tighten until the gasket contacts the mounting surface, then tighten an additional 3/4 turn. Always verify the M20-1.50 thread size matches your Isuzu engine. Dispose of the used filter per local regulations.

Used in

Common applications for BALDWIN FILTERS
Diesel generator maintenance — Baldwin Filters CTK5029-4 coolant test strips for monitoring SCA levels in cooling systems
Fleet vehicle servicing — Baldwin Filters CTK5029-1 coolant test strips for checking freeze point in heavy-duty truck radiators
Industrial compressor cooling — Baldwin Filters coolant test strips for verifying antifreeze concentration in closed-loop systems
Agricultural equipment upkeep — Baldwin Filters CTK5029-4 test strips for nitrite level checks in tractor engine coolants
Marine engine maintenance — Baldwin Filters coolant test strips for freeze point verification in vessel cooling systems

BALDWIN FILTERS Products

3G Electric supplies BALDWIN FILTERS spin-on oil filters. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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