USD$ 🌍 Worldwide shipping from Taiwan → nickhobbies.com ｜ 🇺🇸 US orders → nickhobbiesusa.com

Log in Sign up
Cart (0)

Parts / Option Parts

Take your RC car's performance to the next level with Koswork's option parts and hop-ups. From drivetrain upgrades and suspension components to chassis reinforcements — precision-engineered parts built for competitive RC racing.

Koswork Kyosho Rear Shock Tower Shock Stay 4mm Carbon Graphite MP11 KOS04381-19
Koswork Kyosho Rear Shock Tower Shock Stay 4mm Carbon Graphite MP11 KOS04381-19
$35.00
Koswork Kyosho Front Shock Tower Shock Stay 5mm Carbon Graphite MP11 KOS04381-17
Koswork Kyosho Front Shock Tower Shock Stay 5mm Carbon Graphite MP11 KOS04381-17
$29.00
Koswork Kyosho Steering Plate 3mm Carbon Graphite MP11 KOS04381-15
Koswork Kyosho Steering Plate 3mm Carbon Graphite MP11 KOS04381-15
$12.00
Koswork Kyosho Rear Arm Stiffeners Set Top 1.5mm Carbon Graphite (w/Screws) MP11 KOS04381-13
Koswork Kyosho Rear Arm Stiffeners Set Top 1.5mm Carbon Graphite (w/Screws) MP11 KOS04381-13
$22.50
Koswork Kyosho Front Arm Stiffeners Set Top 1.5mm Carbon Graphite (w/Screws) MP11 KOS04381-11
Koswork Kyosho Front Arm Stiffeners Set Top 1.5mm Carbon Graphite (w/Screws) MP11 KOS04381-11
$18.50
Koswork Kyosho Center Diff Plate 3mm Carbon Graphite MP11 KOS04381-09
Koswork Kyosho Center Diff Plate 3mm Carbon Graphite MP11 KOS04381-09
$18.50
Koswork Kyosho Front Upper Plate Top Deck 5mm Carbon Graphite MP11 KOS04381-07
Koswork Kyosho Front Upper Plate Top Deck 5mm Carbon Graphite MP11 KOS04381-07
$27.00
Koswork Kyosho (-2 & Stock) Steering Arm / Front Knucle Plate Set 3mm Carbon Graphite MP11 KOS04381-05
Koswork Kyosho (-2 & Stock) Steering Arm / Front Knucle Plate Set 3mm Carbon Graphite MP11 KOS04381-05
$12.00
Koswork Kyosho Throttle Servo Plate 3mm Carbon Graphite MP11 KOS04381-03
Koswork Kyosho Throttle Servo Plate 3mm Carbon Graphite MP11 KOS04381-03
$16.50
Koswork Kyosho Steering Servo Plate 3mm Carbon Graphite MP11 KOS04381-01
Koswork Kyosho Steering Servo Plate 3mm Carbon Graphite MP11 KOS04381-01
$23.00
Koswork Associated RC10 Standard Hex Wrench Nut Driver Tool Set (7pcs) (Light Tri Handle) KOS13204-1/4RC10
Koswork Associated RC10 Standard Hex Wrench Nut Driver Tool Set (7pcs) (Light Tri Handle) KOS13204-1/4RC10
$48.00
Koswork Kyosho Carbon Shorty Lipo Battery Mount Set Turbo Optima Mid Special/Mid Optima 2022 KOS04355-12
Koswork Kyosho Carbon Shorty Lipo Battery Mount Set Turbo Optima Mid Special/Mid Optima 2022 KOS04355-12
$40.00
Koswork Kyosho Carbon Radio Plate/Tray/Upper Deck Turbo Optima Mid Special SP KOS04355-11
Koswork Kyosho Carbon Radio Plate/Tray/Upper Deck Turbo Optima Mid Special SP KOS04355-11
$44.00
Koswork Kyosho 4.3mm Anti-Roll Bar Stabilizer Ball Gold (2) KOS04305-8
Koswork Kyosho 4.3mm Anti-Roll Bar Stabilizer Ball Gold (2) KOS04305-8
$5.00
Koswork Kyosho Alum Rear D Pin/Arm Mount Ultima & JJ (to replace UT001-2) KOS04361-03
Koswork Kyosho Alum Rear D Pin/Arm Mount Ultima & JJ (to replace UT001-2) KOS04361-03
$22.00
Koswork Associated RC10 T1 Alum 1/4″ Drive Handle Standard Hex Wrench Nut Driver Tool Set (7pcs) KOS13207-T1RC10
Koswork Associated RC10 T1 Alum 1/4″ Drive Handle Standard Hex Wrench Nut Driver Tool Set (7pcs) KOS13207-T1RC10
$60.00
**Special Offer with purchase of $40 or more** Koswork 90x200mm 1/10 Buggy Tire Tube / Mini-Z / Food Container w/Cap & Seal KOS14073
**Special Offer with purchase of $40 or more** Koswork 90x200mm 1/10 Buggy Tire Tube / Mini-Z / Food Container w/Cap & Seal KOS14073
$1.00 $4.00 Sale
Koswork With 3.7mm Steel Turnbuckle Wrench (3.7mm & 5.5mm) (For Associated & 3mm Nut) KOS13235-3.7
Koswork With 3.7mm Steel Turnbuckle Wrench (3.7mm & 5.5mm) (For Associated & 3mm Nut) KOS13235-3.7
$14.99
Koswork With 3.7mm Turnbuckle Wrench (3.7, 4, 5, 5.5, 7 & 8mm) KOS13231-3.7
Koswork With 3.7mm Turnbuckle Wrench (3.7, 4, 5, 5.5, 7 & 8mm) KOS13231-3.7
$6.00
Koswork 3x8x0.5mm 3mm Steel Washer / Shim Black (8) KOS40308-05
Koswork 3x8x0.5mm 3mm Steel Washer / Shim Black (8) KOS40308-05
$2.50
Koswork 3x6x1mm 3mm Nylon Washer / Shim White (8) KOS40306-1NY
Koswork 3x6x1mm 3mm Nylon Washer / Shim White (8) KOS40306-1NY
$2.50
Koswork 2.5x6.1x0.25mm Diff Washers/Shims (8pcs) KOS402505 KOS402506
Koswork 2.5x6.1x0.25mm Diff Washers/Shims (8pcs) KOS402505 KOS402506
$2.50
Koswork 2.5mm / 2.6mm Washer / Shim (8) KOS402505 KOS402506 KOS402605 KOS402606
Koswork 2.5mm / 2.6mm Washer / Shim (8) KOS402505 KOS402506 KOS402605 KOS402606
$2.50
Koswork 2x4x0.25mm / 0.5mm 2mm Nylon Washer / Shim White (8) KOS40204-025NY/KOS40204-05NY
Koswork 2x4x0.25mm / 0.5mm 2mm Nylon Washer / Shim White (8) KOS40204-025NY/KOS40204-05NY
$2.50
Koswork 16T Motor Gear & 48T Belt Gear (2) (775x2 Starter Box) KOS05205-3
Koswork 16T Motor Gear & 48T Belt Gear (2) (775x2 Starter Box) KOS05205-3
$6.70
Koswork RC10 Hardened Hinge Pin w/locknuts (2) 2WD/4WD Team Associated KOS04191
Koswork RC10 Hardened Hinge Pin w/locknuts (2) 2WD/4WD Team Associated KOS04191
From $9.80
Koswork 775x2 Aluminum Lightweight Starter Box (Off Road / GT) KOS05205
Koswork 775x2 Aluminum Lightweight Starter Box (Off Road / GT) KOS05205
$105.00
Koswork Yokomo Outter Hardened Arm Pin/Suspension Shaft 3x31mm (w/Alum Locknuts) (2) YZ-870C / YZ-10 KOS04502-1
Koswork Yokomo Outter Hardened Arm Pin/Suspension Shaft 3x31mm (w/Alum Locknuts) (2) YZ-870C / YZ-10 KOS04502-1
$9.80
Koswork Yokomo Inner Hardened Arm Pin/Suspension Shaft 3x42.1mm (w/Alum Locknuts) (2) YZ-870C / YZ-10 KOS04502-2
Koswork Yokomo Inner Hardened Arm Pin/Suspension Shaft 3x42.1mm (w/Alum Locknuts) (2) YZ-870C / YZ-10 KOS04502-2
$9.80
Koswork Yokomo 3mm Front / Rear Shock Tower (For Original & Big Bore Shocks) YZ-870C / YZ-10 KOS04501-1
Koswork Yokomo 3mm Front / Rear Shock Tower (For Original & Big Bore Shocks) YZ-870C / YZ-10 KOS04501-1
From $18.20
Koswork Nut Driver Bit 11/32"x75mm 1/4" Drive Hex (for 8-32 nut) Power Tip KOS13207-N11/32
Koswork Nut Driver Bit 11/32"x75mm 1/4" Drive Hex (for 8-32 nut) Power Tip KOS13207-N11/32
$10.00
Koswork Nut Driver Bit 1/4"x75mm 1/4" Drive Hex (for 4-40 nut) Power Tip KOS13207-N1/4
Koswork Nut Driver Bit 1/4"x75mm 1/4" Drive Hex (for 4-40 nut) Power Tip KOS13207-N1/4
$10.00
Koswork Nut Driver Bit 3/16"x75mm 1/4" Drive Hex Power Tip KOS13207-N3/16
Koswork Nut Driver Bit 3/16"x75mm 1/4" Drive Hex Power Tip KOS13207-N3/16
$10.00
MIP Gen 2 1/10 Turnbuckle Wrench (3.70mm) (Lunsford/ProTek/JConcepts)
MIP Gen 2 1/10 Turnbuckle Wrench (3.70mm) (Lunsford/ProTek/JConcepts)
$15.99
MIP Gen 2 Metric Nut Drivers Set (5.5 & 7.0mm)
MIP Gen 2 Metric Nut Drivers Set (5.5 & 7.0mm)
$46.99
Tekno RC XT Adjustable Length Tuning Screw Driver
Tekno RC XT Adjustable Length Tuning Screw Driver
$17.99
Koswork 12AWG Silicon Wire 1M (100cm) KOS05041
Koswork 12AWG Silicon Wire 1M (100cm) KOS05041
$5.00
Koswork Kyosho 4.8mm Mini-Z 4x4 Weight Brass Ball (12) KOS04371-3
Koswork Kyosho 4.8mm Mini-Z 4x4 Weight Brass Ball (12) KOS04371-3
$10.00
TEKNO TKR9141B – Adjustable Ackerman Spindles (-2mm, EB/NB 2.1, requires TKR9057B)
TEKNO TKR9141B – Adjustable Ackerman Spindles (-2mm, EB/NB 2.1, requires TKR9057B)
$13.99
TEKNO TKR9057 – Spindle Pin/Sleeve Set (short/long, EB/NB48 2.1)
TEKNO TKR9057 – Spindle Pin/Sleeve Set (short/long, EB/NB48 2.1)
$23.99
TEKNO TKR9057 – Spindle Pin/Sleeve Set (short/long, EB/NB48 2.1)
TEKNO TKR9057 – Spindle Pin/Sleeve Set (short/long, EB/NB48 2.1)
$23.99
Koswork Tekno Shock Cap Seals O-ring 1.5x1mm (8) KOS04081-36
Koswork Tekno Shock Cap Seals O-ring 1.5x1mm (8) KOS04081-36
$3.00
Koswork Tekno 13mm Emulsion Shock Cap O-ring 12x2mm (4) EB410/ET410 SCT410/MT410 2.0 KOS04081-35
Koswork Tekno 13mm Emulsion Shock Cap O-ring 12x2mm (4) EB410/ET410 SCT410/MT410 2.0 KOS04081-35
$3.00
Koswork Tekno Aluminum Emusion Shock Caps & O-Ring Set (2) EB410/ET410/MT410/SCT410 2.0 KOS04081-34
Koswork Tekno Aluminum Emusion Shock Caps & O-Ring Set (2) EB410/ET410/MT410/SCT410 2.0 KOS04081-34
$16.00
Koswork Kyosho Front/Rear 12mm Blue/Gold Big Bore Buggy Shock Set (2) KOS04351-1
Koswork Kyosho Front/Rear 12mm Blue/Gold Big Bore Buggy Shock Set (2) KOS04351-1
From $47.00