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BrandOPTIMAL
MPNA-3064G
OE refs6
SKU0129-A-3064G
GTIN / EAN4031185015431

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Details

SpecificationValue
BrandOPTIMAL
MPNa-3064g
Fitting PositionFront Axle
Thread SizeM14x1.5
Piston Rod Length [mm]249 mm
Bore Diameter 1 [mm]12 mm
Bore Diameter 2 [mm]14 mm
Distance of mounting bores [mm]60 mm
Piston Rod Diameter [mm]20 mm
Article number of recommended accessoriesAK-735221
Article number of recommended accessoriesF8-5834
Suspension Strut Outer Diameter [mm]45 mm

OE/OEM numbers (6)

Search by this OE number to find compatible parts

Where this part fits

Original-fit position for OE 1683201730. The red ring marks where this part installs on the vehicle.

PART — Others
OthersPosition main

About this product

OPTIMAL shock absorber (A-3064G) restores factory damping characteristics by controlling spring oscillation on both compression and rebound strokes, recovering steering precision and reducing body roll. Damping configuration — Fitting Position: Front Axle, Shock Absorber Type: Aluminium, Shock Absorber Design: Aluminium, Shock Absorber System: Aluminium — is tuned to the original suspension geometry so spring rates and ride height are unaffected, preserving the manufacturer's comfort and handling balance. Mounting dimensions, piston diameter, and stroke length replicate the OEM unit on MERCEDES-BENZ applications, allowing a straight-swap installation without drilling or bracket modification. Supersedes manufacturer part numbers: 0266230000, 110499.0, 16277, 168 320 12 30 and 32 more. OPTIMAL dampers are gas-pressure charged, zero-leakage tested on a servo-hydraulic rig, and carry a 2-year unlimited-mileage warranty against manufacturing defects. Shock absorbers gradually lose damping force over time and should be inspected at 50,000 miles and replaced by 80,000–100,000 miles — even if they are not visibly leaking, internal valve wear reduces their effectiveness. Warning signs include excessive body roll in corners, nose-dive under braking, rear-end squat during acceleration, uneven tyre wear, and a bouncy or floaty ride — a simple bounce test (push down on each corner and release) can reveal weak dampers. Shock absorber replacement is an intermediate DIY task that requires spring compressors (for strut-type assemblies), a torque wrench, and penetrating oil for corroded fasteners — allow 2–3 hours per axle. When selecting shock absorbers, match the damper type (twin-tube, monotube, or gas-pressurised) to the original specification — upgrading to a different type can alter ride height and handling characteristics. Always replace shock absorbers in pairs (both sides of the same axle) to maintain balanced handling, and have the wheel alignment checked afterwards — worn dampers often allow geometry to drift out of specification. Every part is dispatched from our UK warehouse with a 30-day money-back guarantee and free hassle-free returns.

About OPTIMAL

OPTIMAL, founded in Germany, is a well-regarded aftermarket brand specialising in steering, suspension, and wheel bearing components. OPTIMAL produces ball joints, tie rod ends, control arm bushings, wheel bearings, and stabiliser links for European, Asian, and American vehicle applications. Manufactured to stringent quality standards with comprehensive testing protocols, OPTIMAL parts deliver OE-matching fit and performance. Known for excellent value and wide vehicle coverage, OPTIMAL is a popular choice among professional workshops across Europe.

Suitable cars

Equivalent products (30)

Show all 30 OE numbers
AIC52605
AL-KO300643
AL-KO3.064G
BILSTEINVNE-4969
BOGE36-A86-A
DELPHIDG9072
GABRIEL35365
KAMOKA20333288
KYB333614£63.99
KYB333944
METZGER AUTOTEILE2340019
MEYLE0266230000
MONROE16277
MONROEE4390
MONROES4390
NAPANSA1106
QUINTON HAZELLLIP178727
RED-LINE39ME000
SPIDAN86000
SPIDAN86001
SPIDAN86002
SPIDAN86003
STARLINETL C00085.2
TRISCAN8705 23104
VAICOV30-1705
VITAL SUSPENSIONS110499.0
VITAL SUSPENSIONS210499

Shock Absorber OPTIMAL A-3064Gcompatible car models

Car modelsMERCEDES-BENZ: A-CLASS (W168)
EnginesA 140 (168.031, 168.131)
Year of manufacture1997-2005
Manufacturer article number (MPN)A-3064G
OE part numbers168 320 12 30, 168 320 17 30, 168 320 31 30, A 168 320 12 30, A 168 320 17 30, A 168 320 31 30
Compatibility check

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Description and what's included

OPTIMAL a-3064g . Article number of recommended accessories: AK-735221. Article number of recommended accessories: F8-5834. Bore Diameter 1 [mm]: 12 mm. Bore Diameter 2 [mm]: 14 mm. Distance of mounting bores [mm]: 60 mm. Fitting Position: VA. Piston Rod Diameter [mm]: 20 mm. Piston Rod Length [mm]: 249 mm

What's included:
  • 1x Shock Absorber
Shipping, returns, warranty

Free UK delivery on orders over £99.00. Express and standard shipping available.

  • Standard delivery: 2-5 business days
  • Express delivery: 1-2 business days
  • Free returns within 14 days
  • All parts backed by manufacturer warranty

Warranty: 12-month manufacturer warranty on all parts. 14-day money-back guarantee if the part doesn't fit your vehicle.

Frequently Asked Questions

Is this Shock Absorber compatible with my car?

This Shock Absorber fits MERCEDES-BENZ vehicles. Use the vehicle selector at the top of the page to check exact compatibility — enter your car's make, model, and engine for a confirmed fitment match. All fitment data is verified through TecDoc.

What specifications does this OPTIMAL Shock Absorber have?

This OPTIMAL Shock Absorber has the following specifications: Fitting Position: VA; Shock Absorber Type: 2; Shock Absorber Design: 2; Shock Absorber System: 2; Shock Absorber Mounting Type: 3; Shock Absorber Mounting Type: 8. Check the full specifications table above for complete details.

What OE part numbers does this Shock Absorber replace?

This Shock Absorber replaces OE part numbers: 168 320 12 30, 168 320 17 30, 168 320 31 30, A 168 320 12 30, A 168 320 17 30, A 168 320 31 30. Cross-reference these numbers with your vehicle's original part number to confirm compatibility.

How much does a Shock Absorber cost?

This OPTIMAL Shock Absorber is available for £78.99. Shock Absorber prices vary depending on brand, specifications, and vehicle compatibility. OPTIMAL parts offer a balance of quality and value, backed by our 14-day money-back guarantee.

How do I know when to replace my Shock Absorber?

Look for excessive bouncing over bumps, nose-diving during braking, uneven tyre wear, fluid leaks on the shock body, or poor handling. Shocks should be inspected every 50,000 miles.

What tools do I need to replace a Shock Absorber?

Tools needed: floor jack, axle stands, 18-21mm socket for wheel bolts, spring compressor (if top mount must be removed), 17-19mm open-end spanner for shock piston nut, torque wrench. Difficulty: Moderate DIY. Safety warning: Coil springs store enormous energy -- only use purpose-built automotive spring compressors rated for the load. A spring released unexpectedly can cause fatal injury. Never improvise with non-rated tools.

Can I use this part as a replacement for OE 168 320 12 30?

Yes, this OPTIMAL Shock Absorber is a direct replacement for OE part number 168 320 12 30. It is manufactured to meet or exceed original equipment specifications, ensuring proper fitment and performance. All cross-reference data is verified through TecDoc.

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