1. Truck Running Boards & Step Bars Offered
  2. sku: 10036633071815983
  3. JEEP 3921390

JEEP 3921390 Jk Lh Rail Floor Sill Moulding

fits model: Wrangler. make: Jeep. year: 2007–2018.

3921390 Jeep 2007-2018 Wrangler Jk 2 Dr Lh Rock Rail Floor Sill Moulding

( Manufacturer Warranty: 90 Day ), ( Manufacturer Part Number: 3921390 ), ( Genuine Oem: No ), ( Interchange Item Code: 122 ), ( Type: Running Board )

Review JEEP Jk Dr Lh Rock Rail Floor Sill Moulding fits WRANGLER 2007–2018

Introducing the 3921390 Jeep Rail Floor Sill Molding for the 2007-2018 Wrangler JK (LH), an essential accessory that adds both style and functionality to your vehicle. This rail sill molding is specifically designed to fit Jeep Wrangler JK models with left-hand (LH) driving configurations.

This rail sill molding is engineered to protect your vehicle's floor from scuffs, scratches, and other damages caused by daily use. The molding's durable construction is made from high-quality, UV-resistant plastic that can withstand the rigors of off-road driving and harsh weather conditions.

The sleek design of the rail sill molding complements the exterior of your Wrangler JK, giving it a more polished and finished look. The molding seamlessly integrates with the vehicle's body, creating a cohesive and attractive appearance.

Installation of the rail sill molding is a straightforward process. It comes with all necessary mounting hardware for easy installation. Simply attach the molding to the existing floor sills using the provided screws and clips, and you're good to go.

Additionally, the rail sill molding provides an added benefit of improving water drainage from the vehicle. The molding includes drain holes that help channel water away from the cabin, keeping your Wrangler's interior dry and free from water damage.

In summary, the 3921390 Jeep Rail Floor Sill Molding for the 2007-2018 Wrangler JK (LH) is an excellent investment for Wrangler owners who seek to enhance the appearance and functionality of their vehicle. Its durable construction, easy installation, and water drainage capabilities make it a must-have accessory for any off-road enthusiast.

Buying the Jeep 3921390 2007-2018 Wrangler JK LH Rail Floor Sill Molding involves considering its potential benefits and drawbacks.

Pros:

1. Enhanced Aesthetics: The rail floor sill molding adds a stylish and rugged look to the Wrangler's interior, making it more visually appealing.

2. Protection: The molding helps protect the floor of your Wrangler from water, mud, and other debris that can enter the vehicle during off-roading or rough weather conditions.

3. Easy Installation: The rail floor sill molding is relatively easy to install, and it doesn't require any drilling or modification to the vehicle.

4. Durability: The molding is made of high-quality materials, ensuring it can withstand frequent use and rough conditions.

Cons:

1. Cost: The rail floor sill molding can be quite expensive, and it might not be within everyone's budget.

2. Fit and Finish: Some customers have reported issues with the molding not fitting perfectly, resulting in gaps or uneven installation.

3. Compatibility: The rail floor sill molding is only compatible with certain Wrangler models and years, so be sure to check compatibility before making a purchase.

Ending Conclusion:

The Jeep 3921390 2007-2018 Wrangler JK LH Rail Floor Sill Molding is a worthwhile investment for those who take their Wrangler off-roading frequently and want to enhance its appearance and durability. However, potential buyers should be aware of the cost and potential fit and finish issues before making a purchase.

Recommendation:

If you're in the market for a rail floor sill molding for your Wrangler, it's recommended that you purchase from a reputable dealer or retailer to ensure quality and compatibility. Additionally, be sure to read reviews from other customers to get an idea of their experiences with the product.

Details:

Every part is cleaned, tested and inspected by experts. This part fits vehicles made in the following years 2018. Unless specified as Universal this is a direct fit Running Board. Parts go back into cars rather than landfill.

Original parts mean a perfect fit. All parts are covered by warranty.

part #: 3921390 prices

  • $179.95-$279.95

specifications runboardben:

  • for models: Wrangler
  • for makes: Jeep
  • for years: 2007-2018
  • manufacturer warranty: 90 Day
  • manufacturer part number: 3921390
  • genuine oem: No
  • interchange item code: 122
  • type: Running Board

shipping runboardben:

  • type: Fixed
  • class: Standard
  • service: UPS Ground
  • cost: $0.00
  • transit: 3-9 Days
  • carrier: UPS

seller runboardben:

  • city: Grants Pass, Oregon
  • # reviews: 544
  • rating: 100.0%

offer runboardben:

  • sold: 0
  • best offers: True
  • options: Ship-to-home
  • started: January 20, 2026
  • quantity: 1
  • availability: In Stock

payments runboardben:

  • other
  • wallet: Apple-pay
  • credit card: Diners-club

returns runboardben:

  • time: 30 Days
  • paid by: Buyer
  • policy: Returns Accepted

general runboardben:

  • condition: Used
  • Car Truck Parts Accessories > Exterior Parts Accessories > Running Boards Step Bars
for models: wrangler, for makes: jeep, for years: 2007-2018, manufacturer warranty: 90 day, genuine oem: no, interchange item code: 122, type: running board,
manufacturer: jeep, category: auto parts > car truck parts accessories > exterior parts accessories > running boards step bars, sku: 10036633071815983,

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