We can supply CAT spare parts as following:
8N-3102 8N3102 PISTON
6N-9915 6N9915 VALVE
6N-9916 6N9916 VALVE
2P-1262 2P1262 GUIDE
6V-2525 6V2525 KIT VG
6V-1549 6V1549 KIT C+L
8T-2466 8T2466 KIT FRONT
276-4637 2764637 Piston Cooling Jet
490-7200 4907200 Exhaust Valve
490-7198 4907198 Intake Valve
226-5561/300-3565 2265561/3003565 Valve Seat Insert
280-3979 2803979 Valve Seat Insert
122-7375 1227375 Valve Guide
163-2478 1632478 Seal - Valve Stem
247-9908 2479908 Valve Spring Outer
211-3122 2113122 Valve Spring Inner
186-2001 1862001 Seat
2A-4429 2A4429 Valve Collet
197-9322 1979322 Cylinder Liner
9L-5854 9L5854 Band
142-7072 1427072 Seal - Oil
110-2220 1102220 Seal - Oil
142-6217 1426217 Seal - Oil
142-5867 1425867 Seal - Front End Oil
142-5868 1425868 Seal - Rear End Oil
227-1204 2271204 Gasket
224-5122/359-0908 3590908 Gasket - Cylinder Head
216-5582 2165582 Camshaft Bush
6V-1197 6V1197 Seal - O Ring
5E-8771 5E8771 Seal - O Ring
117-8801 1178801 Seal - O Ring
160-7271 1607271 Seal
166-9144 1669144 Gasket - Timing Cover
155-9524 1559524 Gasket - Timing Case
242-9537 2429537 Seal - Rocker Box Cover
272-0390 2720390 Seal
1P-0436 1P0436 Gasket(Fuel Priming Pump)
253-0616/10R-3265 2530616 Injector
9X-7317 9X7317 Kit, Seal-Injector
230-3728 2303728 
230-3775 2303775 
263-4920 2634920 Sleeve
166-2904 1662904 Seal - O Ring
9X-7430 9X7430 Seal - O Ring
478-7933 4787933 Engine Control Module
247-7133 2477133 Thermostat
167-4407 1674407 Seal - O Ring
341-1429 3411429 Seal
3S-9643 3S9643 Seal - O Ring
171-4358 1714358 Seal - O Ring
109-0077 1090077 Seal - O Ring
352-0211/10R-0484 3520211 Water Pump Kit
336-2213/10R-8660 3362213 Water Pump Kit
550-5420 5505420 Seal - Water Pump
1S-4295 1S4295 Gasket - Turbocharger
129-9452 1299452 Gasket - Exhaust Manifold
107-5769 1075769 Seal - O Ring
194-8124 1948124 Sleeve
3E-6772 3E6772 Seal
221-9360/3370201 3370201 Crankshaft Assembly
160-5120 4728426 
4N-0684 4N0684 
7S-5005 7S5005 
332-7297 3327297 Camshaft
332-7298 3327298 Camshaft
267-4631/357-1315/488-1675 2674631/4881675 Crankcase
223-7263/281-1640 2237263/2811640 Cylinder Head Assembly
320-2797/437-3863 4373863 Rocker Arm Assembly
278-1365/437-3861 4373861 Rocker Arm Assembly
161-4113 1614113 Oil Pump
133-0125 1330125 Oil Cooler
385-1657 3851657 Crown
324-7380 3247380 Piston
166-3648 1663648 Gudgeon Pin
7X-2908 7X2908 Retaining Ring
347-2380 3472380 Piston Ring Kit
347-2381 3472381 
347-2382 3472382 
160-8199 1608199 Con Rod Assembly
160-8194 1608194 Small End Bush
197-9367 1979367 Piston Cooling Jet
216-5586 2165586 Camshaft Bush
469-5312 4695312 Liner-Cylinder
167-0024 1670024 Seal-Liner
245-7339 2457339 Seal - Front End Oil
285-4073 2854073 Seal - Rear End Oil
213-3190 2133190 Big End Bearing Kit
151-2939 1512939 Main Bearing Kit
246-3150 2463150 Thrust Washer
282-1771 2821771 
282-1772 2821772 
490-1726 4901726 Intake Valve
490-1723 4901723 Exhaust Valve
232-3236 2323236 Big End Brg Kit - U/S
317-8766 3178766 Main Bearing Kit
253-1752 2531752 Thrust Washer Kit
388-9354 3889354 Piston Kit
524-5565 5245565 
250-2940 2502940 
247-6130 2476130 Piston Ring Kit
164-4187 1644187 
306-4014 3064014  
We supply original parts for Caterpillar main models, as follows:
Caterpillar Excavator:312,312B,312BL,312C,312CL,312D,312D2,312D2GC,312D2L,312DL,312E,312EL,312F,312F GC,313B,313C,313C SR,313D,313D2,313F,313F GC,313FL,313FL GC,314,314C,314D,314D CR,314D LCR,314E CR,314E LCR,315,315B,315BL,315C,315D,315D L,315L,316E,317,317B,317N,318,318B,318BL,318C,318DL,318EL,319C,319D,320,320B,320B Forestry App,320BL,320C,320C FM,320CL,320D,320D FM,320D GC,320D LN,320D LRR,320D RR,320D2,320D2 GC,320D2L,320DL,320E,320E LN,320E LRR,320E RR,320EL,320L,321B,321C,321D CR,321D LCR,322,322B,322BL,322C,322C FM,322CL,322D,322L,322N,323D LN,323D S,323DL,324D,324D FM,324D LN,324DL,324E,324E LN,324EL,325,325B,325B LN,325BL,325C,325C FM,325CL,325D,325D FM,325DL,325L,326D2,326D2L,326DL,326F,326F LN,326FL,328D LCR,329D,329D LN,329D2,329D2L,329DL,329E,329E LN,329EL,330,330B,330B LN,330BL,330C,330CL,330D,330DL,330F,330L,336D,336DL,336E,336EL,345,345B,345BL,345C,345CL,345D,345DL,349D,349EL,350L,365BL,365CL,375,375L,385CL,390D,390FL,5080,5130,5130B,5230,992G,994,994D,E110,E110B,E120,E120B,E200B,E240,E240B,E240C,E300,E300B LC,E70,E70B,EL180,EL200B,EL240,EL240B,EL240C,EL240C LC,EL300B,M325B etc.
Caterpillar bulldozer:4P,517,527,54H,950G,950GII,960F,962G,962GII,962H,D10,D10L,D10N,D10R,D10T,D11N,D11R,D11T,D2,D3,D3B,D3B LGP,D3C,D3CLGP,D3G,D3K,D4,D4B,D4C,D4CLGP,D4D,D4E,D4G,D4H,D4H LGP,D4H XL,D4HTSK II,D4HTSK III,D4K LGP,D4K XL,D5,D5B,D5B LGP,D5C,D5C LGP,D5C XL,D5E,D5G,D5H,D5H XL,D5HTSK II,D5K,D5M,D5M LGP,D5M XL,D5N,D5N LGP,D5N XL,D6,D6 LGP,D6B,D6C,D6C LGP,D6D,D6E,D6F,D6G,D6G2 XL,D6H,D6K XL,D6M,D6M LGP,D6M XL,D6N,D6N LGP,D6N XL,D6R,D6R LGP,D6R XL,D6T,D6T LGP,D6T XL,D7C,D7E,D7F,D7G,D7G LGP,D7H,D7H LGP,D7R,D7R LGP,D7R XR,D8,D8H,D8K,D8L,D8N,D8R,D8T,D9G,D9H,D9L,D9N,D9R,D9T etc.
Caterpillar backhoe:414E,416,416B,416C,416D,416E,420,420B,420C,420D,420DIT,420E,420F,422E,424D,426,426B,426C,426D,428,428B,428C,428D,428E,430D,430E,432D,432E,434E,436II,436B,436C,438,438C,438D,442,442D,442E,446B,446D,450E,4P,517,54H,924G,924GZ,924HZ,928H,928HZ,930H,D4HTSKII,D4HTSKIII.
Caterpillar wheel loader:902,904B,908C,908H,910,910E,914G,914K,916,920,922B,924F,924G,924H,926,926A,926E,928F,928G,930,930G,930H,930R,930T,936,936E,936F,938F,938G,938H,944,950,950B,950E,950F,950G,950H,962G,962H,962M,966C,966D,966E,966F,966G,966H,966K,966R,970F,972G,972H,980B,980C,980F,980G,980H,988,988B,988C,988F,988G,988H,990,990H,992,992B,992C,992D,992G,992K,993K,994,994D,994F,G910,IT14G,IT18B,IT28B,IT28F,IT28G,IT28H,IT38,IT38F,IT38G,IT38H etc.
Caterpillar skid steer:216,226B Series 3,232B,236,236B,242B,242B Series 3,246,247B,247B II,252B,256C,257B,257D,259B3,262B,262C,267B,272C,277B,277C,279C,287B,287D,289C,289D,299C,299D,515,518,518C,525,525B,528,528B,530B,535C,545,545C,773B,773D,773E,773F,775B,775D,775E,775F,950E,FB518 etc.
Caterpillar heavy duty truck:769 770 772 773 775 777 785 789 793 797 etc.
Caterpillar generator sets:3066,3114,3116,S6K,3126,3126B,3126E,3145,3150,3160,3176,3176B,3176C,3196,3204,3208,3304,3304B,G3304,3306,3306B,3306C,G3306,3406,3406B,3406C,3406E,3408,3408B,3408C,3408E,G3408,3412,3412C,3412E,G3412,3456,3504,3504B,C32,C32B,GC32,3512,3512B,G3512,PM3512,3516,3516B,G3516,PM3516,C9,C10,C12,C15,C16,D13000,D311,D315,D318,D320,D326,D330,D333,D333C,G333,D334,D336,D337,D342,G342,D343,G343,D346,D348,G348,D349,D353,D364,D375,D379, D379B,G379,D386,D397, D398,D398B,G398
Caterpillar Engine:3066,3116,3126,3306,3406,3408,3412,C32,3512,3516,3606,3608,3612,C4.4,C6.4,C6.6,C7,C9,C10,C11,C12,C13,C15,C18,C27,C32,C175,C280
Caterpillar Gas engine:G3304,G3612,G3408C,G3606,G399,G3616,G3608,G3606B,G353D,G333C,G3408,G3408B,G342C,G379,G379A,G398,G343,G3304B,G3512B,G3306B