ATRO Engine & Underhood Mounts

New Parts 1/8/2026!

ATRO Part Number	Description	Application
SW46-19496	Sway Bar Bushing / Freightliner MT45/MT55	Designed for high-mileage Freightliner MT45 and MT55 delivery vans, this sway bar bushing helps control body roll and restore stable handling on vehicles that see constant stops and tight turns. ATRO polyurethane resists oils, chemicals, and road contamination better than rubber, helping reduce premature wear and extending service life.
SP54-11730	Leaf Spring Bushing / Hino	This Hino front suspension leaf spring bushing supports critical suspension pivot points that take constant load and vibration. ATRO’s customized polyurethane formula is more durable and reliable, helps maintain proper alignment, and extends service life. Replace all 6 busings per vehicle for optimal performance.

Top 5 By Category - Engine & Underhood Mounts

ATRO Part Number	Description
PL1015-HT	Radiator/Engine Mount (High Temp)
PL1013-HT	Engine Mount (High Temp)
MM75-62401-HT	Engine Mount, Front, HT
MM75-62005-HT	Engine Mount Kit, HT, Front
MM46-62000-HT	Engine Mount Kit (Rear), HT

Product Highlights

When it comes to extreme heat, ATRO High-Temp polyurethane can take it.

ATRO High-Temp parts have unmatched heat resistance with our custom poly formula that won’t degrade when exposed to chemicals, weather, or the hostile engine environment that breaks down rubber parts.

Choose ATRO High-Temp Parts for durability in extreme conditions.

Our custom poly formula is crafted to withstand high heat, maintain its form, and reduce vibration.

Available in kits.

Get everything in one box.
Save time and cost with every install.
No need to piece together individual components.
Most kits include new fasteners for proper torque and a quality repair.

ATRO Website

General Product Information

Customer Service & Technical Support

Phone: (800) 325-6114

Email: customerservice@atrobushing.com

Customer Service Hours:
Monday through Friday: 8:00 am — 5:30 pm U.S. Central Time

ATRO Headquarters
1 ATRO Drive
St. Clair, MO 63077 USA

Headquarters Business Hours:
Monday through Friday: 8:00 am — 4:30 pm U.S. Central Time

Warranty Information

ATRO products are covered by a 3 Year Parts Warranty with the following exceptions:

ATRO Item Type	Warranty Period
Steer King SKS Series Steel Spiral Bushing King Pin Kits	4 Year
Steer King SKB Series Bronze Bushing King Pin Kits	2 Year
Small Eye Torque Rods (2" ID)	2 Year
Equalizer Beams	1 Year
LP50/KT50 Series for Hendrickson HN®/Haulmaax®	1 Year
MS99 Series Gripper Pads and Rollers	No Warranty
MS99-69779 and MS99-69780 Bumper Pads	No Warranty
SKC Series Individual King Pin Components	No Warranty
Tools	No Warranty

View Warranty Details