Skip to product information
SKU:
NLT1G02474
Ships for free in 2–4 business days.
Caterpillar Skid Steer Locking Hydraulic Cap 142-8937
$36.99
In Stock
$36.99
Sale price
$36.99
Regular price
This new aftermarket locking non-vented hydraulic tank cap replaces Caterpillar 142-8937 for the compatible skid steer and compact track loader models listed below.
Estimated delivery between
Let Northline Parts Do the Heavy Lifting for You!
Not sure which part you need? Our team can help you find the right replacement.
Parts Support Hours: Monday–Friday, 8:00 AM–5:00 PM CT
Live Chat: Available 24/7
I reached out for some replacement head bolts and they responded quickly with a few questions and cautionary information and is sending me some bolts. Great customer service! Thanks
Edward H. — Verified customer
Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
Compatible equipment / model
- Caterpillar 216, 216B, 216B3, 226, 226B, 226B3, 226D, 226D3, 228
- Caterpillar 232, 232B, 232D, 232D3, 236, 236B, 236B3, 236D, 236D3
- Caterpillar 242, 242B, 242B3, 242D, 242D3, 246, 246B, 246C, 246D, 246D3
- Caterpillar 247, 247B, 247B3, 248, 248B, 252, 252B, 252B3, 256C
- Caterpillar 257, 257B, 257B3, 257D, 257D3, 259B3, 259D, 259D3
- Caterpillar 262, 262B, 262C, 262C2, 262D, 262D3, 267, 267B, 268B
- Caterpillar 272C, 272D, 272D2, 272D3, 277, 277B, 277C, 277C2, 277D
- Caterpillar 287, 287B, 287C, 287C2, 287D, 297C, 297D, 297D2
Product Overview
A loader working in dust and mud cannot safely run with a loose or missing hydraulic cap. Replacing a cracked cap or flattened seal helps keep contamination out and stops splash or seepage around the filler neck.
This is a hydraulic reservoir cap—not the similar-looking fuel cap. The non-vented design must match the machine because reservoir breathing may be handled elsewhere in the system.
Match 142-8937, filler-neck thread, seal, lock, tank label, and serial number. Clean the area before opening the reservoir so dirt does not fall into the oil.
Key Features & Performance
- Key-locking filler cap
- Non-vented configuration for matching hydraulic reservoirs
- Seal helps block dust, rain, and splash
- Broad Cat compact-loader application family
Replaces Part Numbers
- 142-8937
- 1428937
Common Uses
- Replacing a cap lost during hydraulic service
- Stopping oil seepage at a damaged cap seal
- Protecting fresh hydraulic oil on a dusty jobsite
Technical Specifications
- Product Type: Locking non-vented hydraulic tank cap
- Equipment: Cat skid steer / compact track loader
- Reference: 142-8937
- Condition: New aftermarket replacement
Installation & Fitment
- Lower the attachment and relieve hydraulic pressure
- Clean the cap and filler-neck area
- Compare the original vent and thread design
- Install by hand without forcing the threads
- Lock, unlock, and inspect for leakage after use
Compatibility Notice
Northline Parts does its best to list all known compatible models, but the correct part may fit an application that is not shown above. Model year, production date, serial number, engine or equipment specification, installed options, and previous repairs can change fitment. Match the original part, reference number, dimensions, connectors, mounting points, and product photos before purchase.
Frequently Asked Questions
Q: Is this the fuel cap? A: No. It is intended for compatible hydraulic tanks using 142-8937.
Q: Can I run the loader with a missing cap? A: That risks water and abrasive contamination entering the hydraulic system. Replace the cap and inspect the oil.
Q: Does the model list guarantee fit? A: No. Serial number, tank, neck, and original cap still need to match.
Q: Is this an original-equipment part? A: No. This is a new aftermarket product. Brand names and part numbers are used only to identify compatible applications.
Part Summary
keywords: Cat skid steer 142-8937 cap, 216B hydraulic tank cap, 259B3 locking reservoir cap, Caterpillar 262B filler cap, loader hydraulic cap replacement
Brand names, model numbers, and reference part numbers are used for identification and compatibility purposes only. Verify the original component, specifications, and application before purchase.