The first FJ Cruisers are closing in on twenty years old, and most still ride on factory struts that dive on the brakes and keep bobbing after a dip. These Bilstein 6112s replace that strut with a 2.6-inch monotube body and a 60mm digressive piston, far more oil and control than what came off, and lift the front 1.9" to 3.4" for a level stance and bigger tires.

We take it one step further. The 6112 normally shows up as a box of loose parts: dampers, springs, spring seats, and circlips, with a note that says "spring compressor required." Bilstein's kit also reuses your factory upper mounts. We build them for you, at the height you choose, with new OE-spec upper mounts, so what shows up at your door is two finished coilovers ready to bolt in to your FJ Cruiser, or save you a couple hours of labor at a shop.

How We Build Them

Every pair is built to order after you pick your lift setting above. Here's what happens on our bench:

• Set the circlips. The 6112 body has a row of numbered grooves, and where the circlip sits decides your ride height. On the FJ Cruiser, Bilstein sets the driver side two grooves higher than the passenger side to level the truck side to side. We set each coilover to the setting you ordered.
• Seat the billet spring perch. The anodized aluminum spring seat sits on the circlip and carries the spring.
• Compress and install the Bilstein spring. We use a mounted, shop-grade strut compressor. This is the step that makes DIYers nervous, for good reason: a coil spring under load stores a lot of energy.
• Install a new OE-spec upper mount. The rubber in your factory mounts has been soaking up every pothole for close to twenty years. Reusing tired mounts on fresh coilovers is like putting new tires on bent wheels. New mounts come on every build.
• Torque, check, label. The top nut gets torqued to spec, each coilover is checked and marked driver or passenger, and the pair is boxed together.

Why Buy Them Assembled?

• No spring compressor. Rental "clamshell" compressors are the most dangerous tool most people will ever use in a driveway. You skip that part entirely.
• The right offset, every time. The driver side sits two grooves above the passenger side on the FJ. Get it wrong and it leans. Ours are set, checked and labeled driver and passenger.
• New mounts included. The loose Bilstein kit reuses your factory upper mounts. Ours come with new ones.
• Faster install. Assembly is the slowest part of a coilover job. With that done, the job is removing two struts and bolting in two.

Bilstein approves six pairs on the 2007-2009 FJ: #3 / #1 (1.9") to #8 / #6 (3.4"). Don't use #9 / #7. There's no stock-height setting.

How to choose: Measure from the center of each wheel to the fender lip, front and rear. Pick the setting closest to your rake plus any rear lift you're adding. Steel bumper or winch? One setting higher. Stuck between two? Call us with your measurements: (213) 433-3616.

Matching the Rear: Bilstein 5100 or 5160?

The FJ runs coil springs on four links, so the coils (or a spacer) set rear height and the shock only needs the right length.

The Bilstein 5100 (33-313146) is the default. It uses a 46mm digressive piston in a zinc-plated monotube body and covers stock height up to 2" of rear lift. With Bilstein valving at both ends, the fresh front doesn't feel sharp while the rear bounces around on tired stock shocks.

The Bilstein 5160 (25-311211 left, 25-325096 right) is for a rear that lives loaded. The remote reservoir adds oil capacity, so damping stays consistent with a full cargo area, a rooftop tent or a trailer, and on long washboard roads.

Run the 5100 if:

• The rear is on stock coils, or up to 2" of rear lift
• It's a daily driver that sees dirt on weekends
• You want Bilstein control at both ends for the least money

Run the 5160 if:

• The cargo area is always full: drawers, fridge, water, recovery gear
• You run long washboard or desert roads where shocks get hot
• You tow a small camper or a utility trailer regularly

When you need something else: More than 2" of rear lift needs a longer shock. Call us and we'll size both ends: (213) 433-3616.

Shop the Bilstein 5100 Rear Pair for the 2007-2009 FJ Cruiser

Shop the Bilstein 5160 Rear Pair (2003-2009 4Runner listing, same parts)

On the Road

Bilstein tunes for control first. Against worn factory struts, the FJ feels more planted: less nose dive, less roll, and a front end that settles after a dip. It's firmer than stock, and we'd rather tell you now.

Off the Road

The 2.6-inch body holds more oil than the factory strut and sheds heat better, so damping stays consistent on long washboard roads. Plan on rear shocks to match (see above).

The Honest Trade-Offs

• There's no stock-height setting. The lowest is 1.9".
• Your height is set when we build it. Changing it later means taking the coilover apart with a strut compressor. Measure before you order.
• Firmer than stock. See "On the Road" above.
• Built to order. Every pair is assembled for your truck, so it takes longer to ship than a box pulled off a shelf.
• The top settings work the front end harder. From about 2.5" up, the factory upper control arms and ball joints run at steeper angles and the CV axles work harder. If your alignment shop can't bring camber back into spec, aftermarket upper control arms fix it.
• Don't stack a spacer on top. A strut spacer on top of a 6112 pushes the front past what the factory arms and axles are built for.

Install Notes

• Fits 2007-2009 Toyota FJ Cruiser 4WD.
• 2WD FJ Cruiser: call us. It isn't on Bilstein's chart.
• Carrying a steel bumper, winch and gear full time? Bilstein's heavy-load version is 47-311190.
• For a 2010-2014 FJ Cruiser, you need a different Bilstein 6112 kit (47-310025).
• Removing a strut spacer? Leave it off.
• Get an alignment right after install. Any lift changes camber and toe.
• Recheck the front height after the springs settle in over the first few hundred miles.
• Most people with a floor jack, jack stands, and a basic socket set can swap the pair in an afternoon. The heavy lifting is done.

Who Should Buy These

First-gen FJ Cruiser owners who want a real lift and real damping in one job, with no spring compressor in the driveway.