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Black Heavy-Duty 412 Series 12.5" American-Tuned Gas Shocks w/o Cover - 90/130 Spring Rate (lbs/in) - 412-4001B

  • Part #:
    581422
  • Mfg Part #:
    412-4001B
  • OEM/Ref#:
1 / 9

Black Heavy-Duty 412 Series 12.5" American-Tuned Gas Shocks w/o Cover - 90/130 Spring Rate (lbs/in) - 412-4001B

  • Part #:
    581422
  • Mfg Part #:
    412-4001B
  • OEM/Ref#:
Price: $299.95
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Progressive Suspension Black Heavy-Duty 412 Series 12.5" American-Tuned Gas Shocks w/o Cover - 90/130 Spring Rate (lbs/in) - 412-4001B
  • Features include high-performance gas cells, double-wall construction, six-stage damping, progressive-rate springs, special cam adjusters for easy pre-load adjustment, heat-treated hard chrome rods, long-life seals and fade-resistant oil
  • Comes with upper/lower bushings, a one-year warranty on shocks and a lifetime warranty on springs
  • Heavy-duty shocks for the touring rider carrying passengers or a body weight of 225 lb. and up
  • Sold in pairs


Note: For Chrome 12.5 in. heavy duty series shocks to fit XL, XLCR 79-03 use part no. 58-1423

NOTE: All shocks are measured center-of-eyelet to center-of-eyelet

Included Items:
(2) Shocks w/springs installed
(4) Shouldered 1/2 in. sleeves
(4) Inner 3/8 in. sleeves
(4) 1/2 in. washers
(4) 1/2 in. spacers
(1) Spanner wrench

Specifications
Length 12 1/2 in.
Mfg #: 412-4001B
Part #: 581422
Type Shock Absorber
Units Pair
Weight 10.37 lbs
Alternate/OEM Part Number(s):
PS4001B
Fitment for Progressive Suspension Black Heavy-Duty 412 Series 12.5" American-Tuned Gas Shocks w/o Cover - 90/130 Spring Rate (lbs/in) - 412-4001B

Part 581422 fits the following machines

Harley-Davidson
  • Electra Glide - FLH 1200 1980
  • Electra Glide - FLH-80 1980
  • Electra Glide - FLHS 1980-1981
  • Electra Glide - FLHT 1983-1987
  • Electra Glide Classic - FLHC 1980-1981
  • Electra Glide Classic - FLHTC 1983-2005
  • Electra Glide Classic Injected - FLHTC I 1996-2005
  • Electra Glide Heritage - FLH 1981
  • Electra Glide Injected CVO/SE - FLHTCSE 2004
  • Electra Glide Injected CVO/SE - FLHTCSE 2 2005
  • Electra Glide Special - FLHX 1984-1985
  • Electra Glide Sport - FLHS 1982-1984, 1987-1993
  • Electra Glide Standard - FLHT 1995-2005
  • Electra Glide Standard Injected - FLHT I 2003-2005
  • Electra Glide Ultra Classic - FLHTCU 1989-1999
  • Electra Glide Ultra Classic Injected - FLHTCU I 1995-2005
  • Low Glide - FXRS 1984-1985
  • Low Rider - FXRS 1986
  • Low Rider Sport - FXRS-SP 1990-1993
  • Road Glide - FLTR 1998-2002
  • Road Glide Injected - FLTR I 1998-2005
  • Road Glide Injected CVO/SE - FLTRSE I 2000
  • Road Glide Injected CVO/SE - FLTRSE I 2 2001
  • Road King - FLHR 1994-2005
  • Road King Classic Injected - FLHRC I 1998-2005
  • Road King Custom - FLHRS 2004-2005
  • Road King Custom Injected - FLHRS I 2004-2005
  • Road King Injected - FLHR I 1996-2005
  • Road King Injected CVO/SE - FLHRSE I 2002
  • Road King Injected CVO/SE - FLHRSE I 2 2003
  • Sportster - XL 883R 2002-2003
  • Sportster - XLCH 1000 1979
  • Sportster - XLH 1000 1979-1985
  • Sportster - XLH 1100 1986-1987
  • Sportster - XLH 1200 1988-2003
  • Sportster - XLH 883 1986-2003
  • Sportster - XLX 1000 1983-1985
  • Sportster - XR 1000 1983-1985
  • Sportster Cafe Racer - XLCR 1000 1979
  • Sportster Custom - XL 1200C 1996-2003
  • Sportster Custom - XL 883C 1999-2003
  • Sportster Deluxe - XLH 883 1986-1995
  • Sportster Hugger - XLH 883 1987-2003
  • Sportster Sport - XL 1200S 1996-2003
  • Super Glide - FXR 1986-1994
  • Super Glide II - FXR 1982-1983
  • Super Glide II - FXRS 1982-1983
  • Tour Glide - FLT 1980-1983
  • Tour Glide Classic - FLTC 1982-1983, 1985-1994
  • Tour Glide Classic - FLTC (Early Model) 1984
  • Tour Glide Classic - FLTC (Late Model) 1984
  • Tour Glide Ultra Classic - FLTCU 1989-1995
  • Tour Glide Ultra Classic Injected - FLTCU I 1996
Reviews & Questions
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4.0 / 5.0
15 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
6
5
2
2
0
Fit
4.4 / 5
Quality
4.4 / 5
Style
4.3 / 5
Value
3.9 / 5
Fit
3 / 5
Quality
3 / 5
Style
3 / 5
Value
2 / 5
Disappointed
I purchased these to lower my 09' FLHRC and although they do lower the bike significantly there is a large tradeoff in ride quality. I'm only 190 lbs and the only way to keep these from bottoming out is to adjust the preload to it's maximum level which then makes the ride very harsh. If you absolutely have to lower your bike to reach the ground comfortably and don't plan on long rides you can use these without an issue but if you ride 75 miles or more at a time the ride is too severe to make it worth while. I used these for almost two months and Dennis Kirk still gave me my money back minus 10% because of a few scratches. I think their return policy is very fair and I will not hesitate to buy anything from them in the future.
December 20, 2009
Charlton, MA
Fit
4 / 5
Quality
4 / 5
Style
4 / 5
Value
5 / 5
Great addition
Includes all the possible hardware you could ever need. Great ride and handling- just wish they made them in flat black in addition to the gloss black.
April 4, 2010
Fit
5 / 5
Quality
5 / 5
Style
5 / 5
Value
5 / 5
Great Shocks
Bought these to black out the back of my Iron 883, They look great and the ride is a big improvement over the original shocks
February 28, 2011
Fit
5 / 5
Quality
5 / 5
Style
5 / 5
Value
5 / 5
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July 24, 2011
Fit
5 / 5
Quality
5 / 5
Style
5 / 5
Value
5 / 5
Ideal suspension for riding
This suspension is ideal for those who ride.
My wife & I took my 2002 XLH 883 on a 1000 mile in 24 hour ride with the stock equivalent length Progressive Suspension 412 Series shocks.
May 19, 2012
Phoenix, AZ
Fit
5 / 5
Quality
5 / 5
Style
5 / 5
Value
5 / 5
great value
good ride, nice finish = great value.
November 1, 2011
Fit
5 / 5
Quality
5 / 5
Style
5 / 5
Value
5 / 5
Great product Fantastic price.
These shocks slipped right on my XLCR and are a huge improvement over the original shocks. And the price was 30% below the competition.
March 16, 2012
Fit
5 / 5
Quality
4 / 5
Style
4 / 5
Value
5 / 5
Good,nice and cheap!
Dennis Kirk shipping is good and fast. USPS and Poste Canada for me because I am in Québec Canada. Value is good for the price.Very good purchase and superb black color.
February 11, 2011
Fit
5 / 5
Quality
5 / 5
Style
4 / 5
Value
5 / 5
Progressive 412 shocks
All I can say is they are better than the stock ones, The stock showa shocks aren't the best. These seam to ride better you don't feel the sharp edged bumps as bad, they are even better than the 440 I.A.S shocks that I replaced.
July 25, 2011
Fit
4 / 5
Quality
4 / 5
Style
4 / 5
Value
4 / 5
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April 19, 2011