Trailer Products

Our trailer parts inventory covers the most common axle sizes and trailer types pulled behind Ford F-150, Super Duty F-250 and F-350, Dodge Ram 1500, Ram 2500 and 3500, Chevy Silverado 1500, Silverado 2500HD and 3500HD, GMC Sierra 1500, Sierra 2500HD and 3500HD, Toyota Tacoma, Toyota Tundra, and Nissan Titan. Whether you're rebuilding a 3500 lb single-axle utility trailer, upgrading to electric brakes on a 7000 lb tandem axle, or replacing corroded incandescent lights with LED submersible kits on a boat trailer, every component is sized to your axle capacity and hub configuration.

Trailer Brands and Replacement Components

We carry Dexter axles, Lippert leaf springs, Bargman couplers and jacks, Optronics LED trailer lights, Tekonsha and CURT brake controllers, Master Lock coupler locks, Reese hitch components, and complete bearing repair kits in 1-1/16, 1-3/8, 1-3/4, and 2-1/4 inch hub sizes. Our LED submersible trailer lights kits, sealed bearing protectors, and corrosion-resistant wiring harnesses are built specifically for boat trailers that go in and out of fresh and salt water across Canadian lakes and coastlines.

For trailer hitches, 5th wheel hitches, and gooseneck hitches, browse the Hitches collection. Pair your trailer setup with hitch locks, receiver adapters, and anti-rattle devices from Hitch Accessories, or grab ball mounts, weight distribution hitches, and brake controllers from Towing Components. For towing mirrors, sway bars, and air suspension, see Enhancement, and for flat tow bars and RV dinghy setups, check Tow Bars. Explore the full Towing category for everything you need to tow safely in Canada.

Need to upgrade the truck pulling the trailer? Add a leveling or lift kit from Suspension, protect your bed and paint with mud flaps and tonneau covers from Exterior, or add hauling power with an exhaust system or tuner from Performance. Wire in a brake controller and trailer plug upgrade from Electronics for a complete tow-ready truck.

What's Included in Our Trailer Parts Collection

Every component on this page is sized to a specific axle rating, hub configuration, and trailer weight class — pick the right size for your trailer and you'll get years of reliable service:

• Trailer bearing kits — 3500 lb, 5200 lb, and 7000 lb axle bearing kits in 1-1/16, 1-3/8, 1-3/4, and 2-1/4 inch hub sizes from Dexter and AP Products
• Trailer brakes and brake magnets — 7-inch, 10-inch, and 12-inch electric brake assemblies, brake magnet kits for 7000 lb axles, and hydraulic surge brake parts
• LED trailer lights — submersible LED trailer lights kit, stop/turn/tail lights, marker lights, and complete light bar replacements from Optronics
• Trailer jacks — A-frame trailer jacks (manual and powered), swivel jacks, drop-leg jacks, and electric tongue jacks rated 1500 to 5000 lb
• Trailer couplers and locks — A-frame couplers, channel-mount couplers, ball couplers in 1-7/8, 2, and 2-5/16 inch sizes, plus trailer coupler locks for theft prevention
• Trailer springs and suspension — leaf spring replacement kits, slipper springs, double-eye springs, equalizers, U-bolts, and shackle kits
• Trailer hubs, drums, and axle parts — pre-greased hubs, brake drums, spindles, axle nuts, cotter pins, and seal kits
• Trailer wiring — 4-flat, 5-flat, 6-pin, and 7-pin wiring harnesses, connectors, junction boxes, and waterproof wire splices
• Trailer tires and wheels — ST205, ST225, and ST235 trailer tires, galvanized and white spoke wheels in 13, 14, 15, and 16-inch diameters

Why Choose Lethal Auto

Lethal Auto matches every trailer part to your axle rating, hub size, and trailer weight class — no guessing, no mismatched components. Verified fitment, lowest price guarantee across Canada, and expert support from real towing enthusiasts on every order.

Frequently Asked Questions

How often should you repack trailer wheel bearings?

Trailer wheel bearings should be inspected and repacked with fresh grease every 12,000 miles or once a year, whichever comes first. Boat trailers and trailers exposed to water need more frequent service — typically every 6 months or after every season — because water contamination breaks down grease and corrodes bearings faster than dry-use trailers. Watch for grease leaking past hub seals, hub heat after short tows, or play in the wheel as warning signs that bearings need immediate service.

Are LED trailer lights better than incandescent for trailers?

LED trailer lights are significantly better than incandescent for almost every trailer application. LEDs draw 90% less power, last 50,000+ hours compared to 1,000-2,000 hours for incandescent bulbs, light up instantly for safer braking visibility, and resist vibration damage that constantly destroys incandescent filaments on bumpy trailer travel. Sealed LED submersible lights are especially important for boat trailers since incandescent bulbs crack when hot lights hit cold water during launch.

How do I choose the right size trailer jack for my trailer?

Trailer jack capacity should match or exceed your trailer's tongue weight, which is typically 10 to 15 percent of the loaded trailer weight. A 5,000 lb trailer with 500 lb tongue weight needs a jack rated for at least 1,500 lb to provide a safety margin. A-frame jacks bolt to the trailer's A-frame for travel trailers and utility trailers, while swivel jacks rotate up out of the way during towing. For heavy 5th wheel and gooseneck trailers, electric tongue jacks rated 3,500 to 5,000 lb make hookup faster and easier on your back.

How do you know when trailer brakes need adjusting or replacing?

Trailer brakes need attention when you notice longer stopping distances, brake pulling to one side, grinding or scraping noises, the brake controller showing high amperage at low brake gain, or a burning smell after braking. Electric brake magnets wear flat over time and stop generating proper braking force — typically every 30,000 to 50,000 miles depending on use. Brake shoes should be replaced when lining material wears below 1/16 inch, and drums should be measured and replaced if scored or out of round.

Do I need submersible trailer lights for boat trailers?

Yes — submersible LED trailer lights are essential for boat trailers because non-submersible lights will crack, short out, or corrode when hot lights are dunked in cold water during boat launch and recovery. Sealed submersible LED lights are rated to IP67 or IP68 standards, meaning they can be fully submerged without damage. Pair them with sealed wiring connections, waterproof wire splices, and corrosion-resistant grounds for a boat trailer lighting system that lasts seasons in fresh and salt water.

What is the difference between slipper springs and double eye springs on a trailer?

Slipper springs have one fixed end with an eye and one open end that slides on a rear hanger, allowing the spring to flex and adjust under load. Double eye springs have eyes on both ends that mount to fixed shackles at the front and rear hangers, producing a stiffer ride and more controlled axle position. Slipper springs are more common on light to medium-duty utility trailers and are easier to replace, while double eye springs are standard on heavier trailers, boat trailers, and tandem axle setups where load stability matters more than ride comfort.