# FK-100 - FUEL CAP UPGRADE (2004-2009)

FK-100 - FUEL CAP UPGRADE (2004-2009) - ARGO PARTS

Replacement 1/4 turn plastic fuel cap upgrade.  Upgrade to the current ratchet-style fuel cap, which has a much better seal and a lanyard to prevent loss.  The discontinued 126-46 plastic cap was known to leak water through the rubber seal, and the current chrome version isn't any better.   
  
**Before ordering, check that your rubber neck that attaches to the fuel tank is not hard or rotting.  If it's not flexible, then you will need to order qty 1 of 125-94 in addition to this kit.**  

  
**Fits only 2004-2009 XTV Models:**  
  
Avenger 700 8x8  
Avenger 750 EFI 8x8  
Frontier 480, 580, 650 6x6  
Frontier 650 8x8  
  
  
Kit Includes:  
  
(1)  608-140  Fuel Neck  
(1)  126-100  Fuel Cap

## Details

- **Price:** 148.19 USD
- **Vendor:** ARGO

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 148.19 USD | In stock |

## Images

- FK-100 - FUEL CAP UPGRADE, 1/4 TURN - ARGO PARTS
- Argo Genuine Parts and Accessories

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> Source: [Doc's Full Bore Outdoor](https://parts.docsfullboreoutdoor.com/products/fk-100-fuel-cap-upgrade-1-4-turn)
> Updated: 2026-05-20