Description

ICON’s 2.5 Aluminum Series shocks are designed and built to give your vehicle outstanding performance off-road and a smooth ride on the street. These shocks are configured specifically for each application in both length and damping tune. Featuring one-piece impact extruded aluminum cylinders, these 2.5 Aluminum Series shocks offer lighter weight, improved corrosion resistance, and a more uniform finish than traditional plated steel cylinders. Like all ICON'S Shock Absorbers, 2.5 Aliminum Series shocks are 100% rebuildable and 100% revalveable. For piggyback and specific remote reservoir applications, ICON'S unique use of a 6061 billet aluminum manifold a few inches below the top cap of the shock creates an internal Bump Zone that when used creates an additional 20% of damping force. This additional force helps prevent harsh bottom outs and controls the suspension when compressing at high velocity. If you are looking for a more user defined tune, consider looking into the Compression Damping Control Valve (CDCV) or Omega Series bypass shocks.

Product Overview

ICON’s 2.5 Aluminum Series shocks are designed and built to give your vehicle outstanding performance off-road and a smooth ride on the street. These shocks are configured specifically for each application in both length and damping tune. Featuring one-piece impact extruded aluminum cylinders, these 2.5 Aluminum Series shocks offer lighter weight, improved corrosion resistance, and a more uniform finish than traditional plated steel cylinders. Like all ICON'S Shock Absorbers, 2.5 Aliminum Series shocks are 100% rebuildable and 100% revalveable. For piggyback and specific remote reservoir applications, ICON'S unique use of a 6061 billet aluminum manifold a few inches below the top cap of the shock creates an internal Bump Zone that when used creates an additional 20% of damping force. This additional force helps prevent harsh bottom outs and controls the suspension when compressing at high velocity. If you are looking for a more user defined tune, consider looking into the Compression Damping Control Valve (CDCV) or Omega Series bypass shocks.

Features and Benefits

• ICON’s internal “Bump Zone” increases damping by 20% to provide more control as the shock approaches full compression
• 100% Revalveable
• 7/8” diameter induction hardened, chrome plated shock shaftS
• 100% Rebuildable
• PTFE lined spherical bearings and application specific mounting hardware
• 6061 aircraft grade aluminum CNC machined components
• One-piece impact extruded aluminum cylinders offer excellent corrosion resistance and consistent finish
• Remote reservoir design improves heat dissipation to reduce shock fade during prolonged use
• Premium grade 5WT shock oil for consistent suspension damping along a wide temperature range
• Nitrogen charged monotube design with remote reservoir
• Double-sealed Schrader caps reduce risk of damage
• One piece digressive piston design with vehicle specific valving for unsurpassed performance and ride quality on and off-road

Product Details

71060:	Yes
AAP_UDA_12:	EA
AAP_UDA_22:	1
AAP_UDA_4:	55
Add-On Part:	252012 - -4 TO -10 HOSE SHIELD KIT
Adjustable:	NO
Boot Included:	NO
Bore Diameter:	2.25
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.
Cylinder Material:	Aluminum
Description:	07-21 TUNDRA RXT REAR 2.5 VS RR PAIR
External Reservoir:	Yes
Gas Charged:	Yes
Lower Mount Type:	EYELET
Mounting Hardware Included:	Yes
Part Number:	ico57823P
Service Parts:	254100G - 1 GALLON ICON PERFORMANCE SHOCK OIL
Shock Absorber Body End Measuring Point:	Center of Eylet
Shock Absorber Rod End Measuring Point:	Center of Eylet
Title:	07-21 TUNDRA RXT REAR 2.5 VS RR PAIR
Tube Outside Diameter:	2.5
Upper Mount Type:	Stem

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
	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)
	icoK53155	ICON 2007+ Toyota Tundra RXT Stage 1 System (2x ico158509, 1x ico52050, 1x ico56108, 1x ico57823P)

Data: v4.2 - Upd: 2026-10-13 20:37:29

Features

Specifications

Product Attributes - Brand

ICON Vehicle Dynamics

Product Attributes - Manufacturer's Part Number

57823P

Product Attributes - Part Type

Shocks and Struts

Product Attributes - Product Line

Icon Vehicle Dynamics 2.5 VS RR Shocks

Product Attributes - UPC

00840103403564

Product Attributes - Ride Height

Stock

Product Attributes - Internal Design

Monotube

Product Attributes - Adjustable Valving

No

Product Attributes - Gas Charged

Yes

Product Attributes - Upper Mount

Stud

Product Attributes - Lower Mount

Eyelet

Product Attributes - Boot Included

No

Product Attributes - Body Diameter (in.)

2.500

Product Attributes - Remanufactured

No

Product Attributes - Quantity

Sold as a pair.

Compatibility