Kenworth T660 Helper Springs
- Timbren®Rear SES Rubber Helper Spring Kit (KWRAG400)Rear SES Rubber Helper Spring Kit (KWRAG400) by Timbren®. This SES Suspension Upgrade fits the rear suspension truck. Each laser cut piece of steel is precision bent and powder-coated to ensure a quality fit. Engineered hollow rubber...Improves ride and handlingEliminates trailer sway and roll$1,034.08
- Timbren®Rear SES Rubber Helper Spring Kit (KWRAG460)Rear SES Rubber Helper Spring Kit (KWRAG460) by Timbren®. This SES Suspension Upgrade fits the rear suspension truck. Each laser cut piece of steel is precision bent and powder-coated to ensure a quality fit. Engineered hollow rubber...Improves ride and handlingEliminates trailer sway and roll$1,428.36
- Timbren®Rear SES Rubber Helper Spring Kit (KWRAG100)Rear SES Rubber Helper Spring Kit (KWRAG100) by Timbren®. This SES Suspension Upgrade fits the rear suspension truck. Each laser cut piece of steel is precision bent and powder-coated to ensure a quality fit. Engineered hollow rubber...Improves ride and handlingEliminates trailer sway and roll$1,428.36