Combo Camper Fifth Wheel RV Slide Out Seal Kit - 2 in 1 Protection

In this review the Combo Camper Fifth Wheel RV Slide Out Seal Kit is assessed for RV owners and DIY technicians who need a reliable, full-length replacement for worn slide-out rubbers. The bottom line: this 2 in 1 combo gives a complete replacement set with both a primary clip seal and a slide-in secondary seal plus sealant and screws, so the single biggest reason to buy is that it supplies every piece needed for a proper reseal in one package. The kit is especially useful for owners of Keystone, Northwood and Winnebago rigs looking for a durable OEM-grade match.

Key Features

• Complete kit: Includes the 018-546 clip seal with a 2 in wiper, the 018-338-BLK slide-in secondary seal, lap sealant and 20 self-tapping screws so installers do not need to source extra parts.
• Compatibility: Designed to work with a range of popular RV brands and models including Keystone Cougar and Springdale, Northwood Arctic Fox and many Winnebago units, making it a versatile replacement option.
• Durable materials: The primary TPE slide-out seal is UV-inhibited and resists dust, rain and noise which helps extend the life of the seal and reduces cabin drafts.
• Measured for full runs: Both rubbers come in 35 ft lengths, sufficient for most full slide-out perimeters to avoid multiple splice seams when installed correctly.
• Adhesion and fasteners: The included white lap sealant bonds to aluminum and metal surfaces and is compatible with EPDM and TPE sheeting while 20 self-tapping screws add mechanical security.

Who It's For

This kit is aimed at RV owners who prefer a DIY approach or small shops that handle slide-out reseals and need a full-length, matching pair of rubbers plus hardware. It suits anyone replacing an aged or cracked clip seal and secondary slide-in seal on fifth wheel or travel trailer slide-outs where compatibility with Keystone, Northwood or Winnebago components is required.

Those who should look elsewhere include owners needing nonstandard lengths or factory-exact custom profiles not covered by the 018-546 or 018-338-BLK shapes, and people who expect pre-applied adhesive backing - the kit relies on lap sealant and screws rather than peel-and-stick adhesive.

Pros & Cons

Pros

• Full replacement package reduces trips to the parts counter by including rubbers, sealant and screws.
• High-strength TPE material with UV inhibitors improves longevity and keeps out weather and noise.
• Clear installation manual and full 35 ft lengths make installation straightforward for most slide-outs.
• Compatible with many common RV brands, making it a flexible choice for different rigs.

Cons

• Some users report the lap sealant adhesive quality could be better, so extra adhesive or careful surface prep may be needed.
• A few customers find the length differs from some factory seals, which can require trimming or planning for seams.

Specifications

Kit contents	018-546 clip seal with 2 in wiper, 018-338-BLK slide-in seal, lap sealant, 20 screws
Primary seal 018-546	7/16 in width x 3 in height, 35 ft length
Secondary seal 018-338-BLK	11/16 in width x 13/16 in height, 35 ft length
Sealant	White lap sealant compatible with EPDM and TPE, adheres to aluminum
Fasteners	20 self-tapping screws included
Material	TPE with UV inhibitors
Warranty	Lifetime warranty against manufacturer defects

Our Verdict

The Combo Camper Fifth Wheel RV Slide Out Seal Kit is a practical, value-conscious choice for owners replacing worn slide-out rubbers who want a complete, OEM-minded replacement. It bundles both primary and secondary seals, sealant and screws into a single purchase and the TPE material and 35 ft lengths deliver durability and convenience, though installers should be prepared to address the lap sealant adhesion and confirm length fit for their specific slide-out.

Frequently Asked Questions

Will this fit my Keystone or Winnebago slide-out?
It is designed to be compatible with many Keystone models and several Winnebago rigs; verify profile and dimensions against the 018-546 and 018-338-BLK measurements before ordering.

Does the kit include adhesive backing?
No, the kit uses a white lap sealant and 20 self-tapping screws rather than pre-applied adhesive; surface prep and mechanical fastening are expected.

What warranty is provided?
The rubbers carry a lifetime warranty against manufacturer defects and undergo factory testing to meet or exceed OEM requirements.