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It's Always Spring-Time at Donovan Spring!

 

Donovan Spring Co., Inc.
Donovan Equipment Co., Inc.
6 Enterprise Drive
Londonderry, NH 03053
(603) 627-9800

1-800-458-3867
contact  us

 

 

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UTILITY TRAILER LEAF SPRINGS AND BOAT TRAILER SPRINGS

Low prices and high quality utility leaf trailer springs for boat, bike, utility, and snow-mobile trailers. These boat trailer leaf springs and small trailer leaf springs are shipped out by UPS the same day in most cases. You can E-mail us or give us a call during our business hours with help on selecting the correct trailer springs and trailer parts for your suspension.

B-1465– 9/16 x 3″ cross bolt for 1-3/4″ wide springs Common Trailer 
We also carry trailer leaf springs for larger trailer suspensions such as Hutch, Reyco, Fruehauf, etc.
Bushings come with springs that are 1-3/4″ wide with 9/16″ bolts. Springs with bushing marked with *, ** require separate bushings.

LOW PRICES! These trailer springs can be shipped anywhere by UPS.

Eye Eye Boat Trailer Spring

Type EE (Eye/Eye) Utility Trailer Springs and Boat Trailer Springs

Part No. Width A B C D E Bushing Leaves Grading Capacity
US-1004 1 3/4 10 10 3 0.97 18 3/8 9/16″ 3 3/323 1,600
US-1003 1 3/4 10 3/4 10 3/4 3 0.542 19 1/2 9/16″ 2 2/262 850
US-1008 1 3/4 10 3/4 10 3/4 3 1.048 20 9/16″ 4 4/262 1,000
US-1007 1 3/4 11 1/8 11 1/8 3 1/2 0.97 20 9/16″ 3 3/323 1,500
US-1009 1 3/4 11 3/16 11 3/16 3 3/16 0.786 20 3/8 9/16″ 3 3/262 1,000
US-1028 1 3/4 11 3/16 11 3/16 3 3/8 1.106 20 1/2 9/16″ 4 2/291,2/262 1,400
US-1011 1 3/4 12 1/8 12 1/8 4 1.048 22 3/8 9/16″ 4 4/262 1,000
US-1012 1 3/4 12 1/8 12 1/8 4 1.572 22 3/8 9/16″ 6 6/262 1,600
US-1017 1 3/4 12 1/2 12 1/2 3 1.455 24 9/16″ 5 5/291 1,650
US-1014 1 3/4 12 1/2 12 1/2 3 1/2 0.937 23 1/8 9/16″ 3 2/323,1/291 1,250
US-1046 1 3/4 12 1/2 12 1/2 3 1/2 1.08 23 1/8 9/16″ 3 3/360 1,750
US-1063 1 3/4 12 9/16 12 9/16 3 5/8 1.44 23 1/8 9/16″ 4 4/360 2,500
US-1020 1 3/4 12 5/8 12 5/8 3 1/2 0.873 23 1/2 9/16″ 3 3/291 1,250
US-1037 1 3/4 12 5/8 12 5/8 3 1/2 1.164 23 1/2 9/16″ 4 4/291 1,650
US-1054 1 3/4 12 5/8 12 5/8 3 1/2 1.455 23 1/2 9/16″ 5 5/291 2,050
US-1085 1 3/4 13 3/16 13 3/16 3 1/2 2.049 24 7/8 9/16″ 6 3/360,3/323 3,500
US-1018 1 3/4 13 1/4 13 1/4 3 0.97 25 1/4 9/16″ 3 3/323 1,250
US-1035 1 3/4 13 1/4 13 1/4 3 1.043 25 1/4 9/16″ 3 2/360,1/323 1,500
US-1052 1 3/4 13 1/4 13 1/4 3 1.08 25 1/8 9/16″ 3 3/360 1,750
US-1051 1 3/4 13 1/4 13 1/4 3 1.162 25 1/8 9/16″ 3 2/401,1/360 2,000
US-1044 1 3/4 13 1/4 13 1/4 3 1.292 25 1/8 9/16″ 4 4/323 1,625
US-1067 1 3/4 13 1/4 13 1/4 3 1.44 25 1/8 9/16″ 4 4/360 2,250
US-1065 1 3/4 13 1/4 13 1/4 3 1.522 25 1/8 9/16″ 4 2/401,2/360 2,500
US-1079 1 3/4 13 1/4 13 1/4 3 1.563 25 1/8 9/16″ 4 3/401,1/360 3,000
US-1075 1 3/4 13 1/4 13 1/4 3 1.8 25 1/8 9/16″ 5 5/360 2,700
US-1019 1 3/4 13 1/4 13 1/4 3 2.049 25 1/8 9/16″ 6 3/360,3/323 3,200
US-1013 1 3/4 14 14 4 1/4 0.72 26 9/16″ 2 2/360 1,000
US-1015 1 3/4 14 14 4 1/4 1.048 26 9/16″ 4 4/262 1,150
US-1040 1 3/4 14 14 4 1/4 1.08 26 9/16″ 3 3/360 1,500
US-1060 1 3/4 14 14 4 1/4 1.44 26 9/16″ 4 4/360 2,000
US-1071 1 3/4 14 14 4 1/4 1.8 26 9/16″ 5 5/360 2,500
US-1083 1 3/4 14 14 4 1/4 2.16 26 9/16″ 6 6/360 2,900
US-1088 1 3/4 14 14 4 1/4 2.52 26 9/16″ 7 7/360 3,400
US-1092 1 3/4 14 14 4 1/4 2.807 26 9/16″ 7 7/401 4,550
US-1091 1 3/4 14 14 4 1/4 2.88 26 9/16″ 8 8/360 4,000
US-1001 1 3/4 14 1/16 14 1/16 4 1/4 0.524 26 9/16″ 2 2/262 575
US-1005 1 3/4 14 1/16 14 1/16 4 1/4 0.786 26 9/16″ 3 3/262 850
US-1034 1 3/4 14 1/16 14 1/16 4 1/4 1.31 26 9/16″ 5 5/262 1,500
US-1016 1 3/4 14 1/8 14 1/8 3 0.937 27 9/16″ 3 2/323,1/291 1,000
US-1055 1 3/4 14 1/8 14 1/8 3 2.807 27 9/16″ 4 3/360,1/323 1,950
US-1087 1 3/4 14 1/8 14 1/8 3 1/4 2.324 27 9/16″ 6 4/401,2/360 3,800
US-1093 1 3/4 15 15 3 1/4 1.44 28 3/4 9/16″ 4 4/360 1,800
US-1029 1 3/4 15 15 4 1/4 0.524 28 9/16″ 2 2/262 540
US-1030 1 3/4 15 15 4 1/4 0.786 28 9/16″ 3 3/262 740
US-1094 1 3/4 15 15 4 1/4 1.048 27 3/4 9/16″ 4 4/262 975
US-1098 1 3/4 15 15 4 1/4 1.292 27 3/4 9/16″ 4 4/323 1,475
US-1033 1 3/4 15 3/8 15 3/8 4 1.455 29 1/8 9/16″ 5 5/291 1,250
US-1038 1 3/4 15 3/8 15 3/8 4 1.834 29 1/4 9/16″ 7 7/262 1,550
US-1039 1 3/4 15 3/8 15 3/8 4 2.037 29 1/4 9/16″ 7 7/291 1,750
US-1041 1 3/4 16 1/8 16 1/8 4 5/8 1.08 30 9/16″ 3 3/360 1,250
US-1042 1 3/4 16 1/4 16 1/4 4 5/8 2.16 30 9/16″ 6 6/360 2,500
US-1043 1 3/4 16 1/4 16 1/4 4 5/8 2.88 30 9/16″ 8 8/360 3,200
US-1096 2 14 14 3 1/2 1.604 26 1/2 RB 5/8″ 4 4/401 2,750
US-1095 2 14 14 4 1/4 1.422 26 1 9/32″* 6 6/237 1,475
US-1097 2 15 15 3 1.048 29 JFC 4 4/262 1,100
* Requires 333 bushings which are sold separately
B-1465 - 9/16 X 3" cross bolt for 1-3/4" wide springs
Common Trailer U-Bolts

 

Type ES (Eye/Slipper:Loop) Boat Trailer Springs

Part No. Width A B C D E Bushing Leaves Grading Capacity
US-2004 1 3/4 10 3/4 10 3/4 2 1/2 0.815 20 9/16″ 3 1/291,2/262 850
US-2002 1 3/4 10 3/4 10 3/4 3 0.553 20 9/16″ 2 1/291,1/262 600
US-2007 1 3/4 11 1/4 11 3/4 3 1/4 1.048 21 3/4 9/16″ 4 4/262 1,250
US-2006 1 3/4 11 1/8 11 3/4 3 1/4 0.786 21 3/4 9/16″ 3 3/262 1,000
US-2008 1 3/4 11 1/8 11 3/4 3 1/4 1.31 21 3/4 9/16″ 5 5/262 1,500
US-2010 1 3/4 11 1/8 11 3/4 3 1/4 1.572 21 3/4 9/16″ 6 6/262 1,750
US-2011 1 3/4 11 1/2 11 1/2 3 1/2 0.786 22 9/16″ 3 3/262 950
US-2012 1 3/4 11 1/2 11 1/2 3 1/2 1.048 22 9/16″ 4 4/262 1,100
US-2021 1 3/4 12 13 1/2 2 1/2 1.196 24 1/2 9/16″ 4 1/323,3/291 1,500
US-2022 1 3/4 12 13 1/2 2 1/2 1.8 24 1/2 9/16″ 5 5/360 2,500
US-2023 1 3/4 12 13 1/2 2 1/2 2.52 24 1/2 9/16″ 7 4/360 3,500
US-2013 1 3/4 12 1/2 13 3 1/4 0.873 24 9/16″ 3 3/291 1,000
US-2015 1 3/4 12 1/2 13 3 1/4 1.164 24 9/16″ 4 4/291 1,250
US-2017 1 3/4 12 1/2 13 3 1/4 1.455 24 9/16″ 5 5/291 1,550
US-2020 1 3/4 12 1/2 13 3 1/4 1.746 24 9/16″ 6 6/291 1,875
US-2024 1 3/4 12 1/2 13 3/4 2 7/8 1.44 25 1/2 9/16″ 4 4/360 2,000
US-2005 1 3/4 13 1/2 14 3 1/2 0.969 26 1/4 9/16″ 3 3/323 1,250
US-2009 1 3/4 13 1/2 14 3 1/2 1.08 26 1/4 9/16″ 3 3/360 1,750
US-2014 1 3/4 13 1/2 14 3 1/2 1.44 26 1/4 9/16″ 4 4/360 2,250
US-2016 1 3/4 13 1/2 14 3 1/2 1.8 26 1/4 9/16″ 5 5/360 2,850
US-2018 1 3/4 13 1/2 14 3 1/2 2.16 26 1/4 9/16″* 6 6/360 3,300
US-2019 1 3/4
13 1/2 14 3 1/2 2.52 26 1/4 9/16″ 7 7/360 3,500
Loop End Bushing – Nylon & Steel Sleeve Bushing Assembly 212
B-1465 - 9/16 X 3" cross bolt for 1-3/4" wide springs
Common Trailer U-Bolts

Type ES (Eye/Slipper:Hook) Utility Trailer Springs

Part No. Width A B C D E Bushing Leaves Grading Capacity
US-3015 1 3/4 12 1/2 16 1/4 5 1/2 0.524 25 9/16″ 2 2/262 600
US-3016 1 3/4 12 1/2 16 1/4 5 1/2 0.711 25 9/16″ 3 3/262 750
US-3018 1 3/4 12 1/2 16 1/4 5 1/2 1.048 25 9/16″ 4 4/262 1,000
US-3020 1 3/4 12 1/2 16 1/4 5 1/2 1.572 25 9/16″ 6 6/262 1,450
US-3027 1 3/4 12 1/2 16 1/4 5 1/2 1.746 25 9/16″ 6 6/291 2,000
US-3021 1 3/4 13 1/4 15 1/4 4 1/2 0.524 26 9/16″ 2 2/262 550
US-3022 1 3/4 13 1/4 15 1/8 4 1/2 0.786 26 9/16″ 3 3/262 1,000
US-3034 1 3/4 13 1/4 15 1/8 4 1/2 1.048 26 9/16″ 4 4/262 1,250
US-3038 1 3/4 13 1/4 15 1/8 4 1/2 1.31 26 9/16″ 5 5/262 1,500
US-3011 1 3/4 14 1/2 18 4 1/4 0.582 30 1/2 9/16″ 2 2/291 500
US-3023 1 3/4 14 1/2 18 4 1/4 0.873 30 1/2 9/16″ 3 3/291 750
US-3036 1 3/4 14 1/2 18 4 1/4 1.164 30 1/2 9/16″ 4 4/291 1,000
US-3045 1 3/4 14 1/2 18 4 1/4 1.445 30 1/2 9/16″ 5 5/291 1,250
US-3052 1 3/4 14 1/2 18 4 1/4 1.746 30 1/2 9/16″ 6 6/291 1,500
US-3055 1 3/4 14 1/2 18 4 1/4 1.746 30 1/2 9/16″ 7 7/291 1,750
US-3057 1 3/4 14 1/2 18 4 1/4 2.328 30 1/2 9/16″ 8 8/291 2,000
US-3080 2 11 3/4 15 3/4 2 5/8 2.52 25 7/8 1 9/32″* 7 7/360 4,000
US-3039 2 12 16 3 1/8 1.164 26 1/2 9/16″ 4 4/291 1,500
US-3035 2 12 16 3 1/8 1.329 26 7/8 9/16″ 4 1/360,3/323 2,000
US-3063 2 12 16 3 1/8 1.44 26 7/8 9/16″ 4 3/360 2,500
US-3074 2 12 16 3 1/8 1.8 26 7/8 9/16″ 5 5/360 3,500
US-3076 2 12 16 3 1/2 1.8 26 3/8 1 9/32″* 5 5/360 3,500
US-3083 2 12 16 3 1/2 1.8 26 3/8 RB 5/8″ 5 5/360 3,500
US-3073 2 12 3/4 15 1/4 3 1/2 1.8 26 1/2 9/16″ 5 5/360 3,400
US-3075 2 12 3/4 16 2 3/4 1.8 27 1/2 9/16″ 5 5/360 3,500
US-3084 2 14 1/8 16 1/2 3 1/2 2.406 29 1/2 9/16″ 6 6/401 4,300
US-3084-A 2 14 1/4 16 1/2 3 1/2 2.807 29 1/2 9/16″ 7 7/401 4,800
US-3032 2 1/2 11 5/16 16 3/4 3 1/2 1.44 26 1/8 JFE 4 4/360 2,500
US-3098 2 1/2 11 5/16 16 3/4 3 1/2 2.16 26 1/2 JFE 6 4/360 3,000
* Requires 333 bushings which are sold separately 

  B-1465 - 9/16 X 3" cross bolt for 1-3/4" wide springs
Common Trailer U-Bolts

Type ES (Eye/Slipper:Flat) Boat Trailer Springs

Part No. Width A B C D E Bushing Leaves Grading Capacity
US-3097 1 3/4 12 14 1/2 3 1/2 1.048 25 9/16″ 4 4/262 1,300
US-3048 1 3/4 12 14 1/2 3 1/2 1.08 25 9/16″ 3 3/360 1,850
US-3065 1 3/4 12 14 1/2 3 1/2 1.44 25 9/16″ 4 4/360 2,500
US-3001 1 3/4 13 15 1/2 5 0.524 25 1/8 9/16″ 2 2/262 470
US-3003 1 3/4 13 15 1/2 5 0.786 25 1/8 9/16″ 3 3/262 725
US-3004 1 3/4 13 15 1/2 5 1.048 25 1/8 9/16″ 4 4/262 950
US-3005 1 3/4 15 17 3/4 4 7/8 0.72 30 9/16″ 2 2/360 875
US-3006 1 3/4 15 17 3/4 4 7/8 1.08 30 9/16″ 3 3/360 1,425
US-3054 1 3/4 15 17 3/4 4 7/8 1.44 30 9/16″ 4 4/360 2,000
US-3007 1 3/4 15 17 3/4 4 7/8 1.8 30 9/16″ 5 5/360 2,300
US-3008 1 3/4 15 17 3/4 4 7/8 2.16 30 9/16″ 6 6/360 2,600
US-3014 1 3/4 18 21 5/8 6 1.8 36 9/16″ 5 5/360 1,750
US-3010 2 14 1/4 17 1/2 3 7/8 2.544 30 5/8″* 6 3/447,3/401 4,500
US-3086 2 14 3/8 17 3/4 3 3/4 2.544 30 1 9/32″* 6 3/447,3/401 4,500
US-3013 2 1/2 14 15/16 19 3/16 4 2.235 32 1/2 RB 5/8″ 5 5/447 5,000
US-3089 2 1/2 15 1/4 19 1/8 4 2.235 32 1/2 RB 3/4″ 5 5/447 5,000

B-1465 - 9/16 X 3" cross bolt for 1-3/4" wide springs
Common Trailer U-Bolts

 

Type ES (Eye/Slipper:Radius) Utility Trailer Springs

Part No. Width A B C D E Bushing Leaves Grading Capacity
US-3059 1 3/4 9 1/2 12 3/4 3 0.969 20 3/4 9/16″ 3 3/323 1,000
US-3058 1 3/4 10 1/2 11 1/4 4 0.428 19 1/2 9/16″ 2 2/.214 450
US-3060 1 3/4 12 1/8 14 1/2 4 0.524 24 1/4 9/16″ 1/PAD 1/262,PAD 300
US-3061 1 3/4 12 1/8 14 1/2 4 0.524 24 1/4 9/16″ 2 2/262 500
US-3031 1 3/4 12 1/8 14 1/2 4 0.948 24 1/4 9/16″ 4 4/262 1,000
US-3067 1 3/4 12 1/8 14 1/2 4 1.08 24 1/4 9/16″ 3 3/360 1,700
US-3069 1 3/4 12 1/8 14 1/2 4 1.31 24 1/4 9/16″ 5 5/262 1,250
US-3024 1 3/4 12 1/8 14 1/2 4 0.786 24 1/4 9/16″ 3 3/262 950
US-3070 1 3/4 13 18 3/4 4 3/4 0.553 29 9/16″ 2 1/291,1/262 500
US-3071 1 3/4 14 1/2 19 1/2 4 1/4 0.582 32 9/16″ 2 2/291 500
US-3072 1 3/4 14 1/2 19 1/2 4 1/4 0.873 32 9/16″ 3 3/291 750
US-3078 1 3/4 14 1/2 19 1/2 4 1/4 1.164 32 9/16″ 4 4/291 1,000
US-3079 1 3/4 14 1/2 19 1/2 4 1/4 1.455 32 9/16″ 5 5/291 1,250
US-3081 1 3/4 14 1/2 19 1/2 4 1/4 1.746 32 9/16″ 6 6/291 1,500
US-3062 2 1/2 13 1/2 18 3/8 4 2.143 29 3/4 JFE 5 3/447,2/401 5,000
US-3090 2 1/2 14 3/8 18 4 2.143 30 1/2 1″* 5 3/447,2/401 5,000
US-3088 3 14 1/2 18 1/2 4 2.005 30 1/2 321-359 5 5/401 5,000
US-3091 3 14 1/2 18 1/2 4 2.406 30 1/2 321-359 6 6/401 6,000
US-3094 3 14 1/2 18 1/2 4 2.807 30 1/2 321-359 7 7/401 7,500

B-1465 - 9/16 X 3" cross bolt for 1-3/4" wide springs
Common Trailer U-Bolts

 Common Trailer U-Bolts, Trailer Suspensions, Trailer Suspension Parts, Bolts, Hangers, Side Bars, U-Bolt Plates, Equalizers

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