Baldwin Filters
Baldwin B50 By-Pass Lube Oil Filter (6-Pack) | Heavy Duty Spin-on for Caterpillar, Allis Chalmers, Massey Ferguson | 5/8"-18 Thread | 15 Micron | Replaces Wix 51050 and Fram PB50
Baldwin B50 By-Pass Lube Oil Filter (6-Pack) | Heavy Duty Spin-on for Caterpillar, Allis Chalmers, Massey Ferguson | 5/8"-18 Thread | 15 Micron | Replaces Wix 51050 and Fram PB50
SKU:B50-BV
Low stock
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- Free shipping on $70+
- Ships from US warehouse
- 30-day returns
The Baldwin Filters B50 is a by-pass lube oil filter (6-pack.
Key features
- Heavy-Duty Application: Ideal for older heavy-duty, agricultural, and industrial equipment, including fit for Allis Chalmers, Caterpillar, Massey Ferguson, and Oliver.
- Precision Filtration: Features an Absolute 15 Micron Rating to effectively capture extremely fine soot and contaminants that can cause engine wear.
- Integrated Orifice: Contains a Flow Control Orifice, which is critical for regulating flow rate and ensuring correct pressure within a by-pass system.
- Key Dimensions & Crosses: Thread Size is 5/8 inch - 18. Replaces OEM numbers such as Caterpillar 666-3172 and Massey Ferguson 1069954-M91.
Product details
The B50 is engineered to provide depth filtration for a portion of your engine's oil supply, maintaining exceptional cleanliness and protecting critical components from microscopic wear particles. **PRODUCT DESIGN** Unlike standard full-flow filters, the B50 operates in a **By-Pass** system and features an integrated **Flow Control Orifice** to maintain a precise, low flow rate. This configuration allows for the use of dense media (15 Absolute Micron) to achieve superior oil purity. **APPLICATIONS** This filter is commonly used on classic heavy-duty applications, including being compatible with: **Caterpillar** Engines & Equipment **Allis Chalmers** Equipment **Massey Ferguson** Tractors & Forklifts **Oliver** Equipment Older Jeep and Hino Models **KEY SPECIFICATIONS:** - Thread Size: 5/8 inch - 18 UNF - Outside Diameter (OD): 3 11/16 in. (93.7 mm) - Length (Height): 5 3/8 in. (136.5 mm) - Filter Type: By-Pass Lube Spin-on **CROSS-REFERENCE / REPLACES:** - Caterpillar: 666-3172 - Allis Chalmers: 4512207-3 - Massey Ferguson: 1069954-M91 - Wix: 51050 - Fleetguard: LF607
Before you order
- Match the part number to your current filter or the fitment above — engines in one model year can use different filters.
Specifications
| Brand | Baldwin Filters |
|---|---|
| Manufacturer part number | B50 |
| Part type | Oil Filter |
| UPC / GTIN | 791440000612 |
| Weight | 1.00 lb |
| Dimensions (L × W × H) | 3.6 × 3.6 × 5.3 in |
| Category | Engine & Drivetrain |
| Condition | New |
| Returns | 30-day returns on unused items |
Questions
What does shipping cost?
Standard shipping is free on orders of $70 or more to the lower 48 states and DC, and $8 below that. Express is $15 at checkout. Orders ship the same business day when placed early in the day, otherwise the next business day; standard delivery takes 3–5 business days. Alaska and Hawaii are charged by weight at checkout.
Can I return it?
Yes — unused items in the original packaging can be returned within 30 days of delivery. A restocking fee may apply; see our refund policy.
Shipping & delivery
Shipping & delivery
Free standard shipping on orders of $70 or more to the lower 48 states and DC; $8 on smaller orders. Express is $15 at checkout; Alaska and Hawaii are charged by weight. Orders ship from the warehouse closest to you — the same business day, or the next business day if ordered late in the day, on a weekend or holiday. Standard delivery takes 3–5 business days. Oversized items (bumpers, running boards, large tonneau covers, some marine equipment) ship LTL freight — we contact you to schedule delivery and a signature is required.
Returns & warranty
Returns & warranty
Unused, uninstalled parts in original packaging can be returned within 30 days of delivery. A restocking fee of up to 20% may apply depending on the product, and return shipping is the buyer’s responsibility unless the item arrived defective, damaged or incorrect. Items marked Final sale can't be returned. If a part fails, contact us with your order number and we'll help with the manufacturer's warranty claim.
Fitment & part numbers
Fitment & part numbers
Verify fitment with the manufacturer part number shown above and your vehicle’s year, make, model and trim. If the listing says “Fits select…”, confirm your exact application before ordering. Not sure? Send us your VIN and the part number and we’ll check it for you.
