- FEATURED BRANDS
- Blog
- How to Choose a Car Jack
- How to Recharge a Dead Car Battery
- Brake Pad Replacement
- Car Isn’t Warming Up?
- Jumper Cables or Booster Pack?
- Fuel Additives
- See all blog articles
- How to Replace Brake Pads and Rotors
- Complete Guide to Towing a Trailer
- Detailing Products and Expert Advice
- What Are Fuel Additives
- How to Recharge Your Car's AC
- How to Fix a Chip in Your Windshield
- DEALS
In-STORE PICKUP
Same day if availableFREE SHIPPING
On orders $75 and moreFree Returns
Easy & hassle freeNAPA REWARDS
Earn Rewards today!
text.skipToContent
text.skipToNavigation
NAPA OE Spectrum Shock Absorber Load Adjuster Rear
NAPA OE Spectrum Shock Absorber Load Adjuster Rear
Part #:
NSA 58643
Line:
NAPA Shocks and Struts
Why?
This item is currently not at your store, but is available for order. Please call store to verify the specific location and delivery details for this item. Note that additional shipping charges may be required.
Requested quantity is not available. Please update the quantity below.
Choose Pickup Store
Pickup Item(s):
You may see adjusted pickup dates in your cart for existing items if you change your store.
stores within 120 km of
H1B 5L4
Change
Features & Benefits
Warranty:
Standard : Limited Lifetime, Replacement Will Be Issued for Unit that Proves Defective During Normal Use on the Vehicle on Which It Was Originally Installed. Extended Only to the Owner of the Vehicle on Which the Unit is Installed-Not Transferable.
Download
Download
WARRANTY INFORMATION
| Warranty Available for Download |
|
Warranty
|
The NAPA OESpectrum Load Adjusting Shock Absorber W/ PSD (Position Sensitive Damping) & The Safe Tech System Combines Our Exclusive Precision Tapered Grooves In The Pressure Tube w/ Application Engineered Valving & Fluon Banded Piston To Improve The
- Ride, Handling, & Safety Characteristics Of The Vehicle. These Units Also Include A Heavy Gauge Calibrated Spring For Extra Control & Comfort. A New Pair Of Monroe OESpectrum Load Adjusting Shock Absorbers Can Assist In Maintaining Ride Height When
- Up To 1,200lbs Of Additional Weight Is Loaded (Capacity Is Limited By Vehicle Suspension, Tires & Transmission. See Vehicle Owner's Manual For Details). These Units Are Ideal For Light Trucks That Carry Varying Loads Or Tow Trailers.
- All Weather Fluid: Contains Special Modifiers To Reduce Friction & Ensure Smooth Rod Reaction
- Full Displaced Valving: Tuned Specifically For Each Application, This Valving Automatically Adjusts To Road Extremes To Provide Consistency & Ride
- Fluon Banded Piston: The Fluon Band Provides Consistent Sealing Between The Piston & Pressure Tube Which Delivers Better Control & Increased Durability
- Heavy Gauge Calibrated Coil Spring: Computer Designed For Maximum Performance w/o An Increase In Ride Harshness
- Unique Groove Tube - PSD: Precision Tapered Grooves In The Pressure Tube Perform Like An Additional Stage Of Valving For Optimum Ride Tuning
- Nitrogen Gas Charged: For Improved Ride & Handling, Helps Maintain Tire To Road Contact By Reducing Aeration - On Most Applications
- Special Seal: 'self-Lubricating' Fluid Seal Designed To Retain Gas w/o Excessive Wear Or Friction
- 5/8" Piston Rod: Heavy-Duty Nitrocarburized Rod For Long Service Life. On Non-Dust Shield Units Only - On Most Applications
Specifications
| Shock Compressed Length | 16.59 in. |
| Compressed Length | 16.59 in |
| Lower Mount Type | Eyelet |
| Manufacturer Part Number | 58643 |
| VMRS Code | 016-008-003 |
| Lower Mount | LS38 |
| Adjustable | Yes |
| Coil Over Springs Included | Yes |
| Upper Mount Type | Eyelet |
| Lower Mounting Isolator Included | Yes |
| Upper Mount | LS38 |
| Extended Length | 27.55 in |
| Shock Dust Shield | Yes |
| Shock Travel Length | 10.96 in. |
| Stroke Length | 10.96 in |
| Dust Shield | Yes |
| Shock Extended Length | 27.55 in. |
| Upper Mounting Isolator Included | Yes |