LEER Truck Cap Replacement Parts | ARE Truck Caps
We stock the complete range of OEM-quality replacement parts engineered specifically for LEER truck caps and toppers. Every component — from gas struts and rotary latches to weather seals and window assemblies — meets the original factory specifications that made your LEER cap a trusted investment.
Whether you're restoring a vintage model or maintaining a recent-year topper, our parts inventory ensures you get genuine-fit components without compromise. We understand that a truck cap is a working tool, not a decoration, so every seal, hinge, and latch we supply is built to the same durability standard LEER has maintained for decades.
OEM specifications & fitment details
Gas Struts & Lift Support Components
Gas struts are the most frequently replaced component on any truck cap, and LEER models are no exception. We carry lift supports calibrated to the exact weight and geometry of your specific LEER topper — 100N, 150N, 200N, and custom ratings depending on cap size and window configuration.
A failing gas strut announces itself clearly: the cap drops too quickly when released, or requires two hands to hold open. Replacing struts in matched pairs restores the controlled, one-handed operation you had when the cap was new. Our struts feature zinc-plated steel bodies and sealed nitrogen chambers rated for temperature extremes from -40°F to 160°F, ensuring consistent performance whether you’re working in January or July.
Weather Seals & Gaskets
LEER’s bulb-style weather seals are molded to precise profiles that mate with the brand’s extruded aluminum rails. Generic aftermarket seals often fail because they’re sized for a universal application, not the specific geometry of LEER’s mounting system.
We stock replacement seals in both EPDM rubber and TPE formulations, depending on your model year. EPDM seals excel in UV and ozone resistance, making them the right choice for caps that sit in direct sun. TPE seals offer superior low-temperature flexibility for northern climates where winter sealing is critical. Both materials maintain compression set memory — the seal rebounds to its original shape after years of contact pressure, preventing the permanent flattening that leads to water intrusion.
Latches, Locks & Handle Assemblies
Rotary Latches & Paddle Handles
LEER caps use rotary latches with cam-action strikers that pull the cap down tight against the bed rail seals. When a latch wears, you’ll notice the cap lifts slightly at speed or rattles over rough roads. Our replacement rotary latches feature stainless steel pawls and zinc-dichromate striker plates that resist corrosion even in salt-belt service.
T-Handles & Lock Cylinders
We supply T-handle assemblies with and without lock cylinders, and we can cut replacement keys to your existing LEER code if you still have one original key to reference. The lock cylinder body threads directly into the handle housing, and the internal tumbler stack is pre-keyed before shipment. For caps with lost keys, we offer rekeying kits that let you install a new cylinder set keyed alike across all three access points.
Essential Replacement Components for Your LEER Cap
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Common Questions About LEER Cap Replacement Parts
Gas strut force requirements depend on your cap model, bed length, and window configuration. LEER 100 series caps with side windows typically use 150N struts, while larger 180 and 122 models may require 200N or higher. The easiest way to match the correct rating is to check the stamped code on your existing strut — it will show the Newton rating and stroke length.
If your original struts are no longer readable, measure your bed length and count the number of windows, then contact us with your LEER model number. We can cross-reference the factory specification for your exact setup.
We strongly recommend replacing gas struts in pairs, even if only one side has failed. Struts lose pressure gradually over time, so if one has failed, the other is typically near the end of its service life as well.
Mismatched strut force creates uneven lifting — the cap will rise crooked and put stress on the hinge mounts. Replacing both struts at once ensures balanced lift and prevents premature wear on your cap's mounting hardware.
Many core components like gas struts, weather seals, and rotary latches have remained consistent across LEER's product line for decades. We stock parts that fit models dating back to the mid-1990s, including the classic 100R, 100XR, 180, and 122 series.
Lock cylinders and some window track profiles did change in the mid-2000s, so you'll need to verify your model year and series designation before ordering those specific parts. Send us a photo of your existing component and your cap's model tag, and we can confirm compatibility before you order.
EPDM rubber offers superior UV and ozone resistance, making it the better choice for caps exposed to intense sun or coastal environments. It maintains flexibility across a temperature range of -40°F to 250°F and resists cracking from prolonged UV exposure.
TPE formulations provide better low-temperature flexibility and memory retention in cold climates. If you regularly use your truck in sub-zero conditions, TPE seals will compress and rebound more reliably than EPDM. Both materials meet LEER's OEM specifications — your choice depends primarily on climate and exposure conditions.
Gas struts are rated for approximately 50,000 cycles, which translates to 8-12 years for most users opening the cap once or twice daily. Weather seals last 10-15 years in moderate climates; UV exposure and temperature extremes can reduce that to 7-10 years.
Rotary latches and lock cylinders have no defined wear interval if properly lubricated, but striker plates may show groove wear after 15-20 years of daily use. Window assemblies are essentially permanent unless damaged by impact. Regular maintenance — cleaning tracks, lubricating latches, treating seals with silicone spray — extends the service life of all components significantly.
LEER lock cylinders use a different keyway and tumbler stack than automotive ignition systems, so direct rekeying to match your truck key is not possible. However, we offer rekeying kits that let you install new cylinders keyed alike across all three LEER access points — front panel, left side, and right side.
If you want a single-key solution, some customers choose to install aftermarket lock cylinders with automotive-style keyways, though this requires drilling out the original LEER cylinder body. We can supply the replacement cylinders and walk you through the process if you choose that route.
We ship in-stock leer truck cap parts the same business day when orders are placed before 2 PM Eastern. Standard ground shipping reaches most of the continental US within 3-5 business days. Expedited options include 2-day and overnight service for parts needed urgently.
Most components — gas struts, latches, seals, and handles — ship from our primary warehouse and are available for immediate shipment. Some window assemblies and custom-cut glass panels may require 5-7 business days for fabrication before shipping.