Skip to product information
Harley OEM NOS 51770 29 3128 29 Std Lower Seat Post Spring Kit 1929 19840
  • Harley OEM NOS 51770 29 3128 29 Std Lower Seat Post Spring Kit 1929 19840
  • Harley OEM NOS 51770 29 3128 29 Std Lower Seat Post Spring Kit 1929 19841
  • Harley OEM NOS 51770 29 3128 29 Std Lower Seat Post Spring Kit 1929 19842
  • Harley OEM NOS 51770 29 3128 29 Std Lower Seat Post Spring Kit 1929 19840
  • Harley OEM NOS 51770 29 3128 29 Std Lower Seat Post Spring Kit 1929 19841
  • Harley OEM NOS 51770 29 3128 29 Std Lower Seat Post Spring Kit 1929 19842
Harley OEM NOS 51770 29 3128 29 Std Lower Seat Post Spring Kit 1929 1984

Harley OEM NOS 51770 29 3128 29 Std Lower Seat Post Spring Kit 1929 1984

$69.95
You are purchasing a pack of NOS OEM standard lower seat post springs for 1931-1984 Harley-Davidson twin models including Knucklehead, UL, Panhead, Shovelhead, WL, WLA, WLC, and Servicar where a stock seat post is used..  Please check your own parts references for applicable model years. From Eastern Motor Parts, one of the most highly respected parts manufacturers in the industry.

We are stocking more transmission, clutch, and motor parts keep an eye on our listings or email if there's something you need and don't see.

We sell NOS, good used OEM, and the finest reproduction parts for 1915-1984 Harleys though our heaviest stock is 1925-1969.  Be sure to check with us for any need you have.  If we don't have it on hand, we can source it.  We also manufacture and sell the most accurate wiring kits for 1926-1969 Harley-Davidson models available anywhere, all assembled by hand at our shop in New Mexico.

If you don't see what you need here or cimarroncycleworks, just email and ask.

Located at and ships from Cimarron Cycle Works, LLC in beautiful Cimarron New Mexico, USA!

Used on the following models:
  • 1931-1952 DL, RL WL, WLD, WLA, WLC 45" solo models
  • 1932-1973 G, G Servicar
  • 1930-1948 V, VL, VLH, U, UL, ULH 74" & 80" big twin flathead
  • 1936-1947 EL, FL 61" & 74" OHV Knucklehead
  • 1948-1965 EL, FL, 61" & 74" OHV Panhead
  • 1966-1984 FL, FLH Shovelhead (with factory seat post).
PLEASE NOTE: When it's practical, I will gladly combine all your purchases into one shipment for a discounted rate.  

A note on shipping:

If you would like to take advantage of our combined shipping discounts or shipping promotions, please first add all your items to your shopping cart then proceed to check out and pay for all items at once.  Your shipping discount will be automatically figured.  Should you need to add an item, we will combine it with your other purchases and issue an appropriate refund to your PayPal account.

We work with a small and select group of vendors and dedicated craftsmen to bring you the very best restoration and repair parts for 1915 to 1984 Harley-Davidson motorcycles.  We also offer a huge collection of restoration quality plain head, CP-1038, & CP-1035 bolts; fillister head & round head screws; correctly machined nuts & washers; fuel & oil lines; wiring harnesses; handlebar switches; air cooled spark plugs; clips, clamps, and ties in cadmium, parkerized, zinc, chrome, and raw finishes.

You may also like