Description

To take advantage of the additional travel that the RXT Rear Suspension System offers, ICON engineers had to scrap the OE leaf springs and develop a replacement that addressed issues found in the R&D process. The result is a user-adjustable multi-rate leaf pack that offers a major performance gain for almost every Tundra setup imaginable. Features like tip inserts and leaf separators reduce friction and increase ride comfort, while a military wrapped front eyelet improves the durability and strength of the leaf spring. To increase the ride quality of the truck and gain additional droop travel, the spring rate has been lowered slightly. While many Tundra owners will embrace this, there are those who have outfitted their trucks with a significant amount of weight in the form of a bed rack, roof top tent, spare tires and parts or other additions. Understanding this, the leaf pack was designed with an additional leaf (included with kit) that can be exchanged or added to the pack yielding an additional 15% or 25% in spring rate that will handle more "outfitted" vehicles.

Product Overview

To take advantage of the additional travel that the RXT Rear Suspension System offers, ICON engineers had to scrap the OE leaf springs and develop a replacement that addressed issues found in the R&D process. The result is a user-adjustable multi-rate leaf pack that offers a major performance gain for almost every Tundra setup imaginable. Features like tip inserts and leaf separators reduce friction and increase ride comfort, while a military wrapped front eyelet improves the durability and strength of the leaf spring. To increase the ride quality of the truck and gain additional droop travel, the spring rate has been lowered slightly. While many Tundra owners will embrace this, there are those who have outfitted their trucks with a significant amount of weight in the form of a bed rack, roof top tent, spare tires and parts or other additions. Understanding this, the leaf pack was designed with an additional leaf (included with kit) that can be exchanged or added to the pack yielding an additional 15% or 25% in spring rate that will handle more "outfitted" vehicles.

Features and Benefits

• Direct bolt-in to OEM spring location makes for an easy install
• 3 user-adjustable spring rates for unique vehicle configurations
• Military wrap front eyelet for increased durability
• Galvanized leaf separators reduce friction and aid in corrosion resistance
• Leaf tip inserts reduce noise and increase ride comfort
• Includes additional leaf with 15% or 25% increase in spring rate for more laden "outfitted" vehicles
• Potential for increased wheel travel when used with RXT shock (up to 25%) without sacrificing up-travel
• “ICON 1K” tested under rigorous off-road conditions to validate tune, performance, strength, and durability

Product Details

AAP_UDA_12:	EA
AAP_UDA_22:	1
AAP_UDA_4:	55
Add-On Part:	52050 - TOYOTA REAR 8.0" U-BOLT KIT
Axle Modification Needed:	No
Axle Orientation:	Rear
Axle Spring Perches Included:	No
Bushing Color:	Black
Bushings Included:	Yes
California Prop 65 Warning:	Yes
California Proposition 65:	WARNING: This product contains chemicals known to the State of California to cause cancer, and birth defects or other reproductive harm.
Color:	Black
Description:	07-21 TUNDRA MULTI RATE RXT LEAF PACK W/ ADD IN LEAF
Finish:	Painted
Grade Type:	Performance
Helper Spring:	No
Leaf Quantity:	9
Leaf Width:	2.5
Long Travel Shackles Included:	No
Material:	Steel
Maximum Lift:	4
Minimum Lift:	1.75
Modification Required:	No
Mounting Hardware Included:	Yes
OEM Wheels & Tires Fitment:	Yes
Part Number:	ico158509
Pernos en "U" incluidos:	no
Spring Color:	Black
Spring Material:	Steel
Suspension Grade Type:	Performance
Tipo de Grado:	Reparación de Banda
Title:	ICON 2007-2021 Toyota Tundra, Multi-Rate RXT Leaf Spring Pack w/Add In Leaf
U Bolts Included:	No
U-Bolt Spring Plates Included:	No

Kit Options

This item is available as a full kit.
Select a kit option in the following table if you are looking for this item in a bundle form with all associated components.

Kit option/s:

Thumb	SKU	Kit Title
	icoK53167	ICON 2007+ Toyota Tundra 1.63-3in Stage 3 3.0 Suspension System (2x ico158509, 1x ico52050, 1x ico56108, 1x ico58560DJ, 1x ico58755, 1x ico59923P)
	icoK53166	ICON 2007+ Toyota Tundra 1.63-3in Stage 2 3.0 Suspension System (2x ico158509, 1x ico52050, 1x ico56108, 1x ico58560DJ, 1x ico58755, 1x ico57823CP)
	icoK53030	ICON 2007+ Toyota Tundra 1-3in Stage 10 Suspension System w/Billet Uca (2x ico158509, 1x ico52050, 1x ico58560DJ, 1x ico59923P, 1x ico58750C)
	icoK53030T	ICON 2007+ Toyota Tundra 1-3in Stage 10 Suspension System w/Tubular Uca (2x ico158509, 1x ico52050, 1x ico58460DJ, 1x ico59923P, 1x ico58750C)
	icoK53028	ICON 2007+ Toyota Tundra 1-3in Stage 8 Suspension System w/Billet Uca (2x ico158509, 1x ico52050, 1x ico58560DJ, 1x ico57823P, 1x ico58750)
	icoK53028T	ICON 2007+ Toyota Tundra 1-3in Stage 8 Suspension System w/Tubular Uca (2x ico158509, 1x ico52050, 1x ico58460DJ, 1x ico57823P, 1x ico58750)
	icoK53029	ICON 2007+ Toyota Tundra 1-3in Stage 9 Suspension System w/Billet Uca (2x ico158509, 1x ico52050, 1x ico58560DJ, 1x ico57823CP, 1x ico58750C)
	icoK53165	ICON 2007+ Toyota Tundra 1.63-3in Stage 1 3.0 Suspension System (2x ico158509, 1x ico52050, 1x ico58560DJ, 1x ico58755, 1x ico57823CP)
	icoK53029T	ICON 2007+ Toyota Tundra 1-3in Stage 9 Suspension System w/Tubular Uca (2x ico158509, 1x ico52050, 1x ico58460DJ, 1x ico57823CP, 1x ico58750C)
	icoK53157	ICON 2007+ Toyota Tundra RXT Stage 3 System (2x ico158509, 1x ico52050, 1x ico56108, 1x ico59923P)
	icoK53155	ICON 2007+ Toyota Tundra RXT Stage 1 System (2x ico158509, 1x ico52050, 1x ico56108, 1x ico57823P)
	icoK53156	ICON 2007+ Toyota Tundra RXT Stage 2 System (2x ico158509, 1x ico52050, 1x ico56108, 1x ico57823CP)

Data: v4.2 - Upd: 2026-10-15 04:04:53

Features

Specifications

Product Attributes - Brand

ICON Vehicle Dynamics

Product Attributes - Manufacturer's Part Number

158509

Product Attributes - Part Type

Leaf Springs

Product Attributes - Product Line

Icon Vehicle Dynamics Multi-Rate Leaf Spring Packs

Product Attributes - UPC

00840103408774

Product Attributes - Ride Height

Lifted

Product Attributes - Ride Height Note

Additional ride height information may be available for your vehicle, please refer to the app tab.

Product Attributes - Spring Positioning

Rear

Product Attributes - Rear Spring Raised Amount Range (in.)

1.750 in.

Product Attributes - Progressive Rate Spring

No

Product Attributes - Bushings Included

Yes

Product Attributes - Spring Finish

Black

Product Attributes - Quantity

Sold individually.

Product Attributes - Notes

Raised ride height is based on standard truck with no load.

Compatibility