Dock Leveler Spring Finder

Main extension springs are the centerpiece of Mechanical Dock Levelers, but you also need snubber springs and lip extension springs for Air Powered and Hydraulic Dock Levelers. Here is a comprehensive list of the springs used in all the major brands.

Click here for downloadable picture guide for measuring your dock leveler spring.

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Image Brand Part Number Length Dia Wire
Size
Coils Type Note Add to Cart
Rite-Hite 52100 23 1/2" 3" .435" 41 Extension This is by far our best selling spring.
Rite-Hite 52105 8 1/8" 2 5/8" .389" 10 Extension Snubbing Cable Spring
Rite-Hite 52111 5" 3/8" .048" 70 Extension  
Serco 333-029 8 1/8" 2 3/4" .389" 10 Extension Lip Lifter Spring
DLM DOTH2582 15 1/2" 1" N/A N/A Gas Gas Shock (Spring) (OTH2582)
Kelley 709-437 15" 1" N/A N/A Gas Same as 200-02396 and 13-0118
Rite-Hite 52200 3 1/2" 1 1/2" .075" 4 Torsion  You may also need the 5015 Ratchet Bar and 5014 Pawl if purchasing this part.
Blue Giant 113-143 100"lg Flat Coil Spring for Blue Giant holdown (box style Holdown)
Serco 333-043 12 5/8" 3 1/4" .310" 23 Extension medium 16 or 18'' lip
Serco 333-054 25" 4" .634" 30 Extension WL Main Spring
McGuire 113-61 19 1/2" 3 1/4" .393" 36 Extension Main Spring (red)
Kelley 709-472 22" 1 1/4" N/A N/A Gas Gas Spring w/ Ball Stud Ends
Kelley 030-114 2 1/2" 1 2/3" .070" 2 Torsion Lost Motion
McGuire 113-058 8" 2 3/8" .333" 12 Extension Standard Snubber 
Kelley 030-116 2 1/2" 1/3" .068" 18 Torsion Holdown Pawl
Rite-Hite 52106 13 1/4" 3/4" .085" 130 Extension  
Pentalift 302-0390 21 1/2" 3 3/8" .440" 38 Extension Pentalift Main Spring
Kelley Atlantic 32-19841 16" 1" N/A N/A Gas Gas Spring w/ Clevis
Blue Giant 223-0004 23" 3 1/2" .472" 39 Extension Main Lifting
Kelley 030-142 5" 1 5/8" .073" 6 Torsion Handle Return Spring
Kelley 101-091 1 1/2" 1 3/8" .093" 5 Torsion  
Kelley Atlantic 060-045B 26 3/4" 3 1/8" .500" 44 Extension Main Spring, (Redesigned) Larger dia. & wire than OEM
Rite-Hite 52101 23 1/2" 3" .410" 44 Extension  
Blue Giant 017-034 10 1/4" 1 5/8" .215" 32 Extension  
Pioneer A19 8" 2 3/8" 10 Extension Snubber Spring 
Rite-Hite 52120 25" 3 1/4" .475" 42 Extension  
Kelley 030-193 7 7/8" 2 3/4" .333" 12 Extension Lip Lifter 
DLM DOTH2570 20 1/2" 3 1/2" .406" 38 Extension same as OTH2570
Rite-Hite 52108 18 1/2" 3 5/8" .369" 36 Extension  
Serco SMF5035 7 3/8" 2 3/4" .450" 9 Extension 8' Snubber assy. kit chain, chain stop, shackles & extension spring
Blue Giant 793-971 24" 3 3/8" .373" 38 Extension  
Pioneer A20 16 1/4" 1/2" .067" 228 Extension Lip Lock Spring
DLM DOTH2555 8 1/8" 2 3/4" .389" 10 Extension Snubber Spring (OTH2555)
Kelley Atlantic 060-050 27 1/2" 3" .406" 53 Extension Main Spring
McGuire 113-55 23 3/8" 3 1/8" .386" 46 Extension Main Spring (Purple)
McGuire 702670 7 7/8" 2 3/8" .333" 11 Extension Snubber Spring
Serco 333-045 3 7/8" 7/8" 21 Extension Latch Bar Return Spring
Kelley 054-058 18" 1" N/A N/A Gas Gas Spring Assembly uses 030-238
Serco 333-044 14 3/4" 5" .380 23 Extension  
Pioneer A7 34 1/4" 3 1/8" .468" 62 Extension Main Spring
Blue Giant 200-02414C 26" 3 1/8" .468 45 Extension  
Ellis 15-006 22 1/2" 3 1/2" .405" 42 Extension Main Spring
Rite-Hite 52129 11" 1 7/8" .186" 50 Extension w/ tapered ends
Nordock 13-0006 26 3/8" 3 1/8" .512" 43 Extension Main Spring, Heavy Duty
Serco 333-049 24" 3 1/8" .464" 39 Extension WL Main Spring
Blue Giant 111-929 10 3/4" 2" .473" 15 Compression  
Blue Giant 017-062 8" 1 5/8" .250" 24 Extension Add-A-Dock
Rite-Hite 52047 5" 1/2" .061" 72 Extension  
Serco 333-050 24 3/4" 4 1/4" .629" 30 Extension  
Kelley 030-026 22 3/8" 3" .438" 41 Extension  
Poweramp 0941-0002 22 3/8" 3 1/4" .469" 37 Extension Main Spring
Rite-Hite 52109 21 5/8" 3 1/2" .386" 42 Extension  
Rite-Hite 120048 13 1/2" 2 3/8" .328" 21 Compression Main Spring
Rite-Hite 52117 11" 1 1/4" .120" 74 Extension Booster Spring
Kelley 030-194 5 1/8" 5/8" .149" 10 Extension  
Serco 333-055 4 7/8" 3/4" .084" 41 Extension Safety Leg
Kelley KMF4169 19" 1" N/A N/A Gas Gas Spring
Nordock 42-0621 17 1/2" 1" N/A N/A Gas Main Gas Spring Assy 17-1/2" long
Kelley 101-080 6" 1 1/2" .147" 6 Torsion Toggle Spring ( N/S 8' & 10' Yieldable Rods)
Rite-Hite 120461 4 3/4" 1 1/8" .069" 6 Torsion  
Kelley 030-043 27 1/4" 1 3/4" .217" 68 Compression Lip Assist Spring
McGuire 113-037 18" 3 3/8" .395" 35 Torsion  
Pioneer 111A 16 1/4" 2 7/8" .465" 23 Torsion  
Serco 333-040 12 5/8" 3 1/4" .310" 23 Extension SUPERSEDED BY 333-043
Serco 333-028 11 3/4" 2 5/8" .250" 32 Extension  
Pentalift 302-0951 7 1/2" 2 3/4" .390" 9 Extension Lip Chain Spring
DLM DOTH2559 5 1/8" 5/8" .069" 58 Extension same as OTH2559
Kelley 101-088 4" 4" .085" 23 Extension  
McGuire MMF3027 2 1/2" 7/8" .093" 9 Extension Holdown
Kelley 700-135 2 3/8" 1/2" .055" 25 Extension  
Serco 333-047 2" 7/8" .081" 7 Compression (LS 4)
DLM DOTH6465 18" 1" N/A N/A Gas Gas Spring DKIT (OTH6465)
Kelley 054-062 12" 1" N/A N/A Gas Gas Spring Assembly
Kelley Atlantic 060-018 16 1/2" 1" N/A N/A Gas Gas Spring w/ Clevis
Kelley Atlantic 13-0509 18" 1 1/2" N/A N/A Gas Gas Spring Assy with ball studs
Blue Giant 017-077 13" 3" 33 Extension Lip Assist
DLM DOTH2576 24" 3 7/8" .500" 37 Extension Main Spring for 8' Leveler same as OTH2576
Rite-Hite 52011 21 5/8" 1 1/2" .232" 47 Compression  
Ellis 15-005 20 3/4" 3 5/8" .405" 39 Extension O/S Main Spring
Blue Giant 203-5011 16 7/8" 2 1/2" .350" 39 Extension Float Spring Assembly
Rite-Hite 56036 11 1/4" 2 3/8" .225" 35 Extension Truck Restraint Ext Spring
Blue Giant 017-061 6 1/8" 5 3/8" .360" 8 Extension for EOD
Kelley 101-089 6 1/8" 5 3/8" .360" 8 Extension Main Lift
Kelley 030-068 6" 1 3/4" .282" 12 Extension Holdown Spring 
Rite-Hite 52103 5 1/2" 1 5/8" .171" 20 Extension Cam Assist Spring
Copperloy 5881A01 4" 1" .085" 23 Extension for EOD
Serco 333-042 3 5/8" 1/2" .061" 45 Extension Spring (Latch Bar)
Kelley 600-005 12" 1" N/A N/A Gas Gas Spring Assembly
Kelley 030-225 12 1/2" 1" N/A N/A Gas Gas Spring 12-1/2" lg
Kelley 101-079 3 1/2" 1 1/4" .177" 18 Torsion  
Kelley Atlantic 060-010 27" 1 3/8" .123" 68 Compression Lip Assist Spring
Kelley Atlantic 310-016 27 1/4" 1 1/2" .225" 68 Compression Spring Lip Assist
Rite-Hite 52014 23" 1 5/8" .261" 55 Compression Lip Assist
Rite-Hite 52003 43 3/4" 1 1/2" .280" 110 Compression Lip Assist
Kelley 705-624 36 1/2" 3 1/2" .506" 62 Extension  
DLM DOTH2550 29 7/8" 1 1/2" .260" 73 Compression Compression Spring (OTH2550)
Rite-Hite 116952 29 1/2" 3 3/8" .398" 55 Extension Spring Extension Main Gen/RTHT Dock
Rite-Hite 116957 29 1/8" 3 1/2" .468" 59 Extension Main Spring
Kelley 030-081 26 5/8" 3" .405" 53 Extension  
Poweramp 0941-0001 22" 3 1/4" .514" 34 Extension Main Spring, Yellow
Blue Giant 203-0019 18" 2 3/8" .313" 41 Extension Float 
Rite-Hite 52114 16 1/2" 2 7/8" .340" 37 Extension found on SA256-6
Pentalift 097-0002-1 15 1/2" 2" .252" 49 Extension  
Pentalift 302-0567 15 1/2" 2" .252" 49 Extension Lip Assist Spring
Serco 333-041 13 1/2" 3 7/8" .375" 19 Extension Superceded by 333-044
Rite-Hite 52110 13 3/8" 3 1/2" .369" 24 Extension  
Kelley 250-010 10 5/8" 1 3/4" .208" 39 Extension  
Blue Giant 108-042 8 1/2" 1 5/8" .215" 23 Extension for Add-a-Dock
Serco 333-021 8" 1" .129" 48 Extension Spring (safety leg)
Poweramp 0941-0011 8" 1 3/8" .219" 30 Extension  
Rite-Hite 52128 8" 2 3/8" .332" 12 Extension Snubbing Spring
Rite-Hite 52000 7 3/8" 1 3/4" 14 Compression  
McGuire 113-268 7" 1 1/8" 54 Extension Return Spring
Copperloy 5539B02 6 3/4" 4 5/8" 11 Torsion for EOD 30K Capacity
Pentalift 097-0038 6 5/8" 1/2" .062" 60 Extension  
Serco 333-039 6 1/4" 5/8" .089" 51 Extension Spring (damper)
Copperloy 5539B01 6 1/8" 5 3/8" .360" 8 Extension EOD 20K Capacity
Kelley 030-084 6" 1" .123" 36 Extension BDC Chain
Kelley 101-077 4 3/4" 1 1/4" .149" 16 Extension  
Blue Giant 017-012 4" 1" .119" 20 Extension for Lip Assist
Poweramp 0522-0002 4" 2" .560" 9 Compression Restraint Guide
Serco 333-037 1" 1" .061" 5 Compression Holdown Return n/s
Ellis 15-020 2 1/4" 1/2" .075" 4 Torsion Pawl Spring
Kelley Atlantic 37-19901 17 1/2" 1" N/A N/A Gas Gas Spring Assembly
McGuire 113-213 20" 1" N/A N/A Gas Gas Spring
McGuire 113-292 29" 1" N/A N/A Gas Gas Spring w/Ball Joint Stud
Rite-Hite 111754 36 1/2" 2" N/A N/A Gas Gas Spring Assembly VB300M Restraint
Pentalift 097-0033 15 1/2" 1" N/A N/A Gas Gas Spring Assy
Kelley 286-497 12 1/2" 1" N/A N/A Gas Gas Spring
Blue Giant 104-017B 11" 2 1/8" .438" 15 Compression for shock absorber
Kelley 101-086 2 1/2" 1/2" .073" 16 Torsion Holdown Pawl 
Kelley Atlantic 060-030 8 1/2" 5/8" .080" 93 Extension Safety Leg Return Spring 5/8 od
Kelley Atlantic 060-023 2 1/2" 1/8" .073" 16 Torsion Pawl Spring
Kelley Atlantic 060-022 2 1/2" 1 3/4" .125" 2 Torsion Pawl Lifter
Kelley 030-196 1" 3/8" .021" 9 Compression  
McGuire 702-668 44" 3/8" .280" 90 Compression  
Kelley 030-012 6 1/8" 1" Torsion C.T.L.-RH
Kelley 030-156 5" 2" 6 Torsion Handle Return Spring
Kelley 030-097 7/8" 1/4" .047" 10 Compression Pawl Holdown
Kelley 030-011 3 5/8" 1/2" .061" 45 Extension  
Kelley 030-008 6" 1" 7 Torsion C.T.L. LH
Kelley 030-009 6 1/8" 1" .136" 6 Torsion C.T.L. RH
Kelley 030-013 6 1/8" 1" 7 Torsion C.T.L.-LH
Kelley 030-060 2 3/8" 1/2" .208" 25 Extension  
Kelley 030-182 2 1/2" 2" 8 Torsion  
Kelley 030-145 27" 1 3/4" .123" 68 Compression Lip Assist Spring
Ellis 15-012 8 3/8" 5/8" .068" 120 Extension Lip Latch
McGuire 113-116 43 3/4" 1 1/2" 90 Compression Lip Extension
McGuire 113-265 35 1/8" 2 1/4" .315" 51 Compression Booster Spring
Kelley 030-231 32 5/8" 2 5/8" 37 Compression  
Rite-Hite 126374 29" 3 1/2" .468" 52 Extension Main Lifting Spring 
Rite-Hite 116951 29 1/4" 3 1/2" .437" 54 Extension Red
Rite-Hite 116954 29 1/4" 3 3/8" .403" 62 Extension Main Spring Yellow
Kelley 030-041 29 1/2" 3 1/4" .437" 52 Extension Lifter Spring
Kelley 705-820 24 1/4" 4" .500" 38 Extension Spring B-Basket
DLM DOTH2578 23 1/4" 4 3/4" .594" 30 Extension Main Spring (OTH2578)
Rite-Hite 52115 22 3/4" 3 3/8" .373" 48 Extension  
DLM DOTH2574 22 1/8" 4 3/4" .531" 26 Extension Main Spring (OTH2574)
Rite-Hite 52041 23" 1 5/8" .261" 55 Compression Lip Assist Spring
Kelley 030-062 23" 1 7/8" .208" 40 Extension  
Kelley 030-031 13 1/4" 3/4" .085" 130 Extension  
Rite-Hite 52113 13 1/4" 3/4" .085" 130 Extension  
Serco 333-030 12" 1 1/4" .158" 58 Extension Booster
Poweramp 0941-0013 11 3/8" 3/4" 111 Extension Lip Latch
Nova MF2-050-000 11" 1 7/8" 50 Extension  
Kelley Atlantic 13-0294 8 3/8" 1/2" .047" 90 Extension Below Dock Leg Return Spring
Kelley 101-097 11" 1/2" .175" 50 Extension  
Pioneer A24 7 1/2" 1/2" .047" 140 Extension Release Lever Spring W/Cotter pins
Rite-Hite 52046 10 7/8" 1 1/4" .166" 60 Extension Snubber Cable Spring
Kelley 101-063 10 5/8" 2" .208" 39 Extension  
Rite-Hite 120178 13 1/2" 1/2" .080" 30 Compression Secondary Compression Spring Dual Spring w/o Galv.
Serco 333-033 9 1/4" 1" .129" 48 Extension Spring (handle)
Kelley 101-083 6 3/4" 4 5/8" .393" 8 Extension Main Lift
DLM DOTH2520 6 1/8" 5 3/8" .360" 12 Extension EOD Spring (OTH2520)
Serco 333-036 5 3/8" 5 1/4" .366" 6 Extension for EOD Leveler
Kelley 030-224 5 1/4" 3/4" .071" 56 Extension  
Serco 332-066 5 1/8" 5/8" 27 Compression Holdown Spring, Lever
Kelley 101-081 5" 5/8" 5 Torsion Toggle Spring ( N/S 6' Yieldable Rod)
Kelley 030-117 4" 1 1/2" 9 Compression Use on 028-063 Lip Latch
OHD 51-70 4" 1" .122" 21 Extension Spring (slide bar return)
Kelley 030-072 3 5/8" 1/2" .061" 45 Extension  
McGuire MMF3029 3 1/4" 3/4" 25 Extension Spring- RED Original Holdown
Blue Giant 109-017 3 5/8" 1" .062" 34 Extension  
Kelley 030-037 3 5/8" 1" .050" 34 Extension Cable Spring ( Panic Stop )
Kelley 101-085 3 5/8" 1" .085" 22 Extension  
Kelley 030-118 2 1/8" 1/2" .065" 26 Extension  
Kelley 030-185 1 3/4" 5/8" .065" 10 Compression Panic Valve 
Kelley 030-086 1" 1/4" .047" 11 Compression Pawl Holdown
Spring table filters with measurements use fuzzy matching.
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