{"id":9518646034659,"title":"07-18 Wrangler JK 4 Door 4 Inch Coil Spring Base Lift Kit w/ Front Track Bar & 9550 VSS Twin-Tube TeraFlex","handle":"teraflex-07-18-wrangler-jk-4-door-4-inch-coil-spring-base-lift-kit-w-front-track-bar-and-9550-vss-twin-tube-teraflex-1251400-fnnt","description":"

The TeraFlex 4 Inch Coil Spring Base Lift Kit w/ Front Track Bar includes just the basic lift components only and doesn't have the drivability of a full suspension system.

Requires adjustable short or long Alpine (IR) Control Arms and/or Rear HD Forged Adjustable Track Bar to correct suspension geometry.

We recommend Falcon Performance Shocks or TeraFlex 9550 VSS Twin-Tube Shocks. These are the only shock absorbers engineered to work with TeraFlex lift coil springs to improve both compression and rebound for optimal vehicle stability.

4.5 Inch Coil Spring Base Lift Kits are offered with TeraFlex 9550 VSS Twin-Tube Shocks or without shock absorbers. Falcon Performance Shocks are available separately.
4 Inch Lift Coil Spring Kit (JK4 Front: # 1853402 & JK4 Rear: # 1854402)
0.5 Inch Lift Coil Spring Spacers (Front x 2: 1953100 & Rear x 2: # 1954105)
HD Forged Adjustable Track Bar - Front (0-6 Inch Lift) (# 1753418)
Rear Track Bar Axle Bracket Kit (3-6 Inch Lift) (# 1954777)
2.75 Inch Bump Stop Extension Kit - Front Upper (# 1953800)
1.25 Inch SpeedBump Bump Stop Strike Pad Kit - Front Lower (# 1467125)
2 Inch Bump Stop Extension Kit - Rear Upper (4-6 Inch Lift) (# 1954802)
0.75 Inch SpeedBump Bump Stop Strike Pad Kit - Rear Lower (# 1954600)
10 Inch Front Sway Bar Quick Disconnect Kit (3-4 Inch Lift) (# 1753000)
12.25 Inch Rear Sway Bar Link Kit (3-4 Inch Lift) (# 1754500)
26 Inch Stainless-Steel Brake Line Kit - Front (# 4353310)
30 Inch Stainless-Steel Brake Line Kit - Rear (# 4350310)
All necessary hardware
And more

9550 VSS Twin-Tube Shock Kit (3-4 Inch Lift) (# 1545200)
Fits:

JK Wrangler Unlimited (4-Door)

Specs:

Lift Height: 4 Inch
Max Tire Diameter: 37 Inch

","published_at":"2026-06-24T18:04:46-05:00","created_at":"2026-06-24T18:04:45-05:00","vendor":"TeraFlex","type":"","tags":["brand_teraflex","category_lift-kits","category_suspension","make_jeep","model_jku","supplier_quadratec","vendor_teraflex"],"price":12565,"price_min":12565,"price_max":12565,"available":false,"price_varies":false,"compare_at_price":169329,"compare_at_price_min":169329,"compare_at_price_max":169329,"compare_at_price_varies":false,"variants":[{"id":49305777406179,"title":"Sold As: Kit / Vehicle Type: Jeep / Location: Front / Doors: 4 Door","option1":"Sold As: Kit / Vehicle Type: Jeep / Location: Front / Doors: 4 Door","option2":null,"option3":null,"sku":"1251400-FNNT","requires_shipping":true,"taxable":true,"featured_image":null,"available":false,"name":"07-18 Wrangler JK 4 Door 4 Inch Coil Spring Base Lift Kit w/ Front Track Bar & 9550 VSS Twin-Tube TeraFlex - Sold As: Kit / Vehicle Type: Jeep / Location: Front / Doors: 4 Door","public_title":"Sold As: Kit / Vehicle Type: Jeep / Location: Front / Doors: 4 Door","options":["Sold As: Kit / Vehicle Type: Jeep / Location: Front / Doors: 4 Door"],"price":12565,"weight":54885,"compare_at_price":169329,"inventory_management":null,"barcode":"843885020592","requires_selling_plan":false,"selling_plan_allocations":[],"quantity_rule":{"min":1,"max":null,"increment":1}}],"images":["//shop.blackflagoffroad.com/cdn/shop/files/1251400-FNNT_0d814141-db11-4619-948d-f5f146cf383e.jpg?v=1782342290"],"featured_image":"//shop.blackflagoffroad.com/cdn/shop/files/1251400-FNNT_0d814141-db11-4619-948d-f5f146cf383e.jpg?v=1782342290","options":["Configuration"],"media":[{"alt":"07-18 Wrangler JK 4 Door 4 Inch Coil Spring Base Lift Kit w/ Front Track Bar & 9550 VSS Twin-Tube TeraFlex","id":39216494510307,"position":1,"preview_image":{"aspect_ratio":0.852,"height":1500,"width":1278,"src":"//shop.blackflagoffroad.com/cdn/shop/files/1251400-FNNT_0d814141-db11-4619-948d-f5f146cf383e.jpg?v=1782342290"},"aspect_ratio":0.852,"height":1500,"media_type":"image","src":"//shop.blackflagoffroad.com/cdn/shop/files/1251400-FNNT_0d814141-db11-4619-948d-f5f146cf383e.jpg?v=1782342290","width":1278}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"

The TeraFlex 4 Inch Coil Spring Base Lift Kit w/ Front Track Bar includes just the basic lift components only and doesn't have the drivability of a full suspension system.

Requires adjustable short or long Alpine (IR) Control Arms and/or Rear HD Forged Adjustable Track Bar to correct suspension geometry.

4.5 Inch Coil Spring Base Lift Kits are offered with TeraFlex 9550 VSS Twin-Tube Shocks or without shock absorbers. Falcon Performance Shocks are available separately.
4 Inch Lift Coil Spring Kit (JK4 Front: # 1853402 & JK4 Rear: # 1854402)
0.5 Inch Lift Coil Spring Spacers (Front x 2: 1953100 & Rear x 2: # 1954105)
HD Forged Adjustable Track Bar - Front (0-6 Inch Lift) (# 1753418)
Rear Track Bar Axle Bracket Kit (3-6 Inch Lift) (# 1954777)
2.75 Inch Bump Stop Extension Kit - Front Upper (# 1953800)
1.25 Inch SpeedBump Bump Stop Strike Pad Kit - Front Lower (# 1467125)
2 Inch Bump Stop Extension Kit - Rear Upper (4-6 Inch Lift) (# 1954802)
0.75 Inch SpeedBump Bump Stop Strike Pad Kit - Rear Lower (# 1954600)
10 Inch Front Sway Bar Quick Disconnect Kit (3-4 Inch Lift) (# 1753000)
12.25 Inch Rear Sway Bar Link Kit (3-4 Inch Lift) (# 1754500)
26 Inch Stainless-Steel Brake Line Kit - Front (# 4353310)
30 Inch Stainless-Steel Brake Line Kit - Rear (# 4350310)
All necessary hardware
And more

9550 VSS Twin-Tube Shock Kit (3-4 Inch Lift) (# 1545200)
Fits:

JK Wrangler Unlimited (4-Door)

Specs:

Lift Height: 4 Inch
Max Tire Diameter: 37 Inch