Rigid “C” channel bulb weatherstrip that slides onto a track channel or wiper seal with track to seal your slide-out against the RV body. 100% EPDM rubber. Will not fade, shrink, or crack. Commonly found on Forest River Sierra fifth wheels and Evergreen Bayhill fifth wheels. Also fits Keystone, Heartland, Lance, and Tiffin. 15 ft strip — ideal for a single slide-out section or partial replacement. Hand crafted and made in USA.
The Steele Rubber Products 90-3382-265 is a 7/8" bulb weatherstrip with a rigid “C” channel base, engineered to replace the slide-out bulb seal on RVs that use a track-and-channel slide-out sealing system. When the slide-out is retracted into the RV body, this bulb seal compresses against the coach wall to create a weathertight barrier against moisture, wind-driven rain, insects, and road debris. The rigid “C” channel slides directly onto the metal track channel located on the existing wiper seal or track assembly — no adhesives, fasteners, or special tools required.
Manufactured from 100% durable EPDM rubber that will not fade, shrink, or crack, this seal is built for the demanding side-wall conditions of RV slide-out systems. The 15 ft strip is the ideal length for a single shorter slide-out section, a partial replacement on a larger slide-out, or for buyers who want to verify fit before purchasing a longer strip. Also sold under part number 70-3833-265, this seal is available in 30 ft and 60 ft lengths and by the foot. Companion wiper-with-track seals are available separately to complete a full slide-out sealing system if the existing track assembly also requires replacement.
Slides directly onto the track channel of an existing wiper seal or standalone track assembly — no adhesive or fasteners required
Bulb profile compresses against the RV coach wall when the slide-out is closed, blocking moisture, insects, and weather from entering
100% EPDM rubber construction maintains profile, flexibility, and appearance through years of outdoor use and repeated slide-out cycling
Hand crafted by Steele Rubber Products with a Guaranteed to Fit promise and 100% Satisfaction Guarantee
This 7/8" bulb weatherstrip with channel is most commonly found on the following RV models: Forest River Sierra — Fifth wheel; slide-out bulb seal on track-and-channel systems Evergreen Bayhill — Fifth wheel; slide-out bulb seal on track-and-channel systems This seal profile is also commonly found on the following RV brands: Forest River — Travel trailers, fifth wheels, and toy haulers with track-style slide-out systems Keystone — Travel trailers and fifth wheels with track-style slide-out systems Heartland — Fifth wheels and travel trailers with track-style slide-out systems Lance — Travel trailers with track-style slide-out systems Tiffin — Class A motorhomes and fifth wheels with track-style slide-out systems Compatibility is not guaranteed. Always verify that your slide-out uses a track-and-channel system and that the channel opening matches the 7/8" H x 1" W bulb profile before ordering. Actual fit may vary based on individual model year and manufacturing variations. Steele Rubber Products offers a Track Style Wiper Seal Sample Pack to help confirm the correct profile before purchasing a full-length strip.
This bulb seal is specifically designed for track-and-channel slide-out sealing systems where the bulb seal slides onto a rigid metal track. It is not a universal slide-out seal and will not work on adhesive-backed, press-in wiper, or fabric-style slide-out sealing systems. Before ordering, confirm the following: • Track System: Your existing slide-out seal uses a rigid “C” channel that slides onto a track — inspect the current seal for the channel feature at the base • Bulb Height: The 7/8" bulb height must clear the coach wall gap when compressed — compare to your existing seal dimensions • Track Channel Width: The “C” channel opening must match the width of the track on your existing wiper or track assembly • Total Length: Measure the full perimeter of the slide-out section to be resealed — top, both sides, and bottom — before selecting a strip length If you are unsure of your profile, use the Steele Rubber Track Style Wiper Seal Sample Pack to identify the correct bulb seal before committing to a full-length purchase.
Step-by-Step Installation: 1. Extend the Slide-Out: Fully extend the slide-out room to expose the full length of the existing bulb seal and track 2. Remove Old Bulb Seal: Slide the worn or damaged bulb seal off the track channel by working from one end and pulling the “C” channel free from the track along its full length 3. Inspect the Track: Check the track channel for damage, corrosion, or deformation; replace if needed before installing the new seal 4. Cut to Length: Measure and cut the new seal strip to the required length using a sharp utility knife 5. Align the Channel: Position the “C” channel opening of the new seal at one end of the track 6. Slide Onto Track: Work the channel onto the track by pressing firmly and sliding along the full length — the channel should snap snugly onto the track 7. Verify Seating: Confirm the “C” channel is fully and uniformly seated on the track with no lifted or unseated sections 8. Test Operation: Retract the slide-out slowly and verify the bulb seal compresses evenly against the coach wall with no gaps or pinched sections
In The Package: • One (1) continuous 15 ft strip of 90-3382-265 Slide-On Bulb Weatherstrip With “C” Channel Recommended Supplies (Not Included): • Sharp utility knife for cutting seal to length • Flat pry tool for removing old seal from track • General-purpose cleaner for track inspection and cleaning Companion Parts Sold Separately (If Track Also Needs Replacement): • Track Channel: 70-4120-265 • Small Wiper With Track: 70-3884-265 • Medium Wiper With Track: 70-3883-265 • Large Wiper With Track: 70-3835-265
This seal is available in multiple lengths. Use this guide to select the right option: 15 Ft Strip (This Item): Ideal for a single shorter slide-out section, partial replacement, or confirming fit before purchasing a longer strip 30 Ft Strip: The most versatile length for a single full-perimeter slide-out on most fifth wheels and travel trailers 60 Ft Strip: Best value for multiple slide-out sections or full reseal jobs on larger fifth wheels with two or more slide-outs By the Foot: Available for custom or partial lengths; cost per foot is higher than pre-cut strips Tip: Measure the full perimeter of each slide-out section requiring replacement — top, both sides, and bottom — and add 10% for cutting allowance before selecting your length.
Slide-out bulb seals are among the most wear-prone components on any RV with slide-out rooms. The repeated compression and release cycle during slide-out operation, combined with constant outdoor exposure, causes even well-made OEM seals to deteriorate over time. Replacing a worn bulb seal promptly prevents the water intrusion and pest access that leads to far more costly interior and structural repairs.