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Gates 31870 Fuel Tank Cap
| Brand | Gates 31870 |
|---|---|
| Material | Solid brass |
| Lockable | Yes |
| Type | Saddle tank fuel cap |
| Thread Diameter | 2.63 |
| Fuse Plug | Yes |
| Thread Size | 2.5" x 8 |
| 9849 | Non-vented |
| Cam Type | Female thread |
| Cam Type | Female thread |
| Cross Bar Length (in) | 3.5 |
| Includes Fuse Plugs | Yes |
| Thread Size | 2.5" x 8 |
| Venting | Non-vented |
| Fits | — |
Lockable design. Adds security with a solid brass fuel cap.
Heavy-duty construction. Built with metal throughout for rugged use.
Non-vented cap. Helps maintain a sealed fuel system.
Cross-references Dixie Electric Ltd 10412, FEL-PRO 35044 and Four Seasons 11412 for the same application. See all 7.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
Gates 31870 Saddle Tank Locking Fuel Cap
The Gates 31870 Saddle Tank Locking Fuel Cap is a heavy-duty replacement for applications that use a 2.5" x 8 female-thread saddle tank opening. Built from solid brass with a non-vented design, it provides a secure, lockable closure for fuel tanks that require controlled sealing and added theft deterrence.
For buyers searching for a locking fuel tank cap for Ford, Chevrolet, or GMC saddle tank applications, this Gates fuel cap offers a direct-fit style solution built around the listed thread dimensions and cam type. The Gates 31870 is also cross-referenced to select aftermarket part numbers for the same application.
Key Features
- Solid brass construction for durable fuel-system service
- Lockable design for added fuel security
- Non-vented fuel cap configuration
- Female thread cam type
- Thread size: 2.5" x 8
- Thread diameter: 2.63
- Cross bar length: 3.5 in.
- Includes fuse plugs
- Heavy-metal construction throughout, per Gates product line design
Product Details
Gates Saddle Tank Locking Fuel Cap 31870 is built for saddle tank fuel systems that call for a threaded, non-vented cap with a locking feature. The solid brass body supports long-term service in demanding fuel-delivery environments, while the female-thread design helps ensure the cap matches the specified tank opening. This part is a practical choice for drivers and technicians replacing a worn, missing, or damaged fuel cap on Ford, Chevrolet, or GMC saddle tank setups where the listed dimensions match the original equipment style.
This part cross-references Four Seasons 11412 and Motorad 2502-00 for the same application.
Common Problems It Can Help Solve
- Missing or damaged locking fuel cap
- Fuel tank opening that no longer seals properly
- Fuel theft concerns on saddle tank setups
- Cap wear that affects secure thread engagement
- Replacement needs for non-vented fuel tank systems
Installation Notes and Tips
Confirm the tank uses a 2.5" x 8 female-thread saddle tank cap before ordering. Match the thread diameter, cam type, and non-vented configuration to the original cap specification. For Ford, Chevrolet, and GMC truck applications, verify the fuel tank opening and locking style against the existing cap or service information before installation.
Quality Assurance
Gates builds this fuel cap with solid brass construction and a heavy-duty locking design for fuel-system service. The Gates 31870 is engineered to meet the listed fitment and construction requirements for saddle tank applications.
| Year | Make | Model | Position | Notes |
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| No rows match your filter. | ||||