Camber Bolt and Toe Adjust Cam Bolt Kits — Eccentric Bolts, Cam Plates and Nuts by OEM Number or From Your Old Kit

What a Camber Bolt Kit Is and How the Eccentric Moves the Arm

A camber bolt kit is an eccentric bolt, two cam plates and a nut that hold a control arm in a slotted bracket: turning the bolt rolls the cams against guides on the bracket and slides the arm by up to twice the cam offset. The cam under the head is fixed to the bolt; the second cam has a D-shaped hole that keys onto a flat on the shank, so both turn together, and on some kits the second cam carries its own hex nut. Index marks on the cam face record the setting. EKINSUN supplies these kits by OEM reference number and makes other kits from the old one, from 1 kit.

The Five OEM Reference Numbers in the Photos

The kits in the photos carry five Toyota reference numbers, and only one of them, 48409-42020, is a rear part: it is the rear toe adjusting cam listed for the 2001–2005 RAV4. The other four are front lower control arm cams or a kit matched by VIN. Kits to these numbers can be supplied; a superseded or discontinued number is made from the old kit.

Names and vehicles as given in Toyota dealer parts listings and aftermarket cross-reference lists, read on 24 October 2026; model years and chassis codes vary, so every number is confirmed against the VIN before an order. The numbers are cross-references: these kits are not Toyota genuine parts. Toyota, 4Runner, FJ Cruiser, Tacoma, Tundra, Sequoia and RAV4 are trademarks of Toyota Motor Corporation.

Front Camber Cams and Rear Toe Cams

Front cams on a double-wishbone pickup or SUV sit at the two inner pivots of the lower control arm: turning both the same way moves the ball joint in or out and sets camber, turning them against each other swings the arm and sets caster. Rear cams sit on a toe link, a trailing arm or a lower arm, and set toe or, on some axles, camber.

How Much Adjustment a Cam Gives, and Extended-Range Cams

A cam with an offset e moves the bolt 2e from one end of its turn to the other, and at the lower ball joint that becomes a camber change of roughly 2e divided by the distance between the ball joints. With 300 mm between the joints, a 3 mm offset gives about 1.1°; an extended-range cam with 5 mm offset gives about 1.9°, which is what a lifted truck needs when the standard cam runs out.

Range = arctan(2e / 300 mm). The distance between the ball joints differs by vehicle; the table shows the scale, not the range of a particular kit. A larger offset needs a longer slot in the bracket and guides that still hold the cam rim.

Grade, Thread and Coating of a Replacement Cam Bolt

The kits in the photos are property class 12.9, and a replacement cam bolt is made to the same class to ISO 898-1, at least 1220 N/mm² tensile and 1100 N/mm² yield, with a class 12 nut, because it carries the arm loads in shear through the bushing sleeve. Chassis cam bolts usually have a fine-pitch metric thread such as M12 × 1.25, M14 × 1.5 or M16 × 1.5; the old bolt is measured, not assumed.

Class minima and the hydrogen embrittlement rule are on the bolt grade chart; the steel and its equivalents on 4140 / 42CrMo4; tightening values by size on the metric bolt torque chart. The vehicle maker’s torque for the cam bolt always comes first.

When the Old Cam Bolt Is Seized in the Bushing

The most common reason to need a new kit is a cam bolt rusted into the steel sleeve of the arm bushing: it turns, but will not come out, and is cut between the bracket and the bushing. After that the bushing is usually replaced as well, and a new kit goes in with its cams set to the centre; the nut is tightened with the suspension at ride height so the bushing is not preloaded twisted, and the alignment is set on a rig. A smear of anti-seize on the shank, not on the thread, helps the next person.

What to Measure From an Old Kit

Nine details make a kit from the old one: the OEM number if the label survives, the shank diameter where it passes through the bushing, the thread and pitch, the length under the head, the cam diameter and offset, the width of the flat, the form of the nut-side cam, the coating and the quantity. The cam offset is half the difference between the largest and smallest distance from the bolt axis to the cam rim.

Buy a Kit or Have One Made

A genuine kit for a common vehicle is sold by the dealer parts counter and by parts stores, and for one vehicle that is the quickest route. A kit made to order starts where that stops: the superseded number, the larger offset, the fleet or distributor quantity and the kit for a vehicle that is no longer supported.

Price and Quantity

A camber bolt kit is quoted per kit from 1 kit, within 12 hours, because the price depends on five things that change from kit to kit: the bolt diameter and length, which set the bar size and turning time; heat treatment to 12.9; whether the cams are pressed or machined; the coating; and the quantity, which spreads the setup.

Shipping is quoted DDP door to door, duties and taxes paid, 5–7 working days by courier to Europe and North America. Other automotive parts made from a sample are on automotive replacement parts; bolts copied from an old one on replacement bolts from a sample. Elsewhere on the same chassis: leaf spring shackles and hangers and trailer axle spindles.

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Camber Bolt Kits — Buyer Questions